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468709865920440 = 23335433990616593
BaseRepresentation
bin110101010010010100000010…
…1000011111001011110111000
32021110120020002110000010021000
41222210220011003321132320
5442413320301133423230
64340510201223445000
7200504112263564304
oct15244500503713670
92243506073003230
10468709865920440
11126388813086691
124469b1418b6760
131716c1c6131171
1483a596dd44d04
15392c344e24b60
hex1aa4a050f97b8

468709865920440 has 64 divisors (see below), whose sum is σ = 1562366219738400. Its totient is φ = 124989297578496.

The previous prime is 468709865920423. The next prime is 468709865920531. The reversal of 468709865920440 is 44029568907864.

468709865920440 is a `hidden beast` number, since 4 + 6 + 8 + 7 + 0 + 98 + 6 + 5 + 92 + 0 + 440 = 666.

It is a super-2 number, since 2×4687098659204402 (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216995307217 + ... + 216995309376.

Almost surely, 2468709865920440 is an apocalyptic number.

468709865920440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

468709865920440 is an abundant number, since it is smaller than the sum of its proper divisors (1093656353817960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

468709865920440 is a wasteful number, since it uses less digits than its factorization.

468709865920440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433990616613 (or 433990616603 counting only the distinct ones).

The product of its (nonzero) digits is 836075520, while the sum is 72.

The spelling of 468709865920440 in words is "four hundred sixty-eight trillion, seven hundred nine billion, eight hundred sixty-five million, nine hundred twenty thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 90 108 120 135 180 216 270 360 540 1080 433990616593 867981233186 1301971849779 1735962466372 2169953082965 2603943699558 3471924932744 3905915549337 4339906165930 5207887399116 6509859248895 7811831098674 8679812331860 10415774798232 11717746648011 13019718497790 15623662197348 17359624663720 19529577746685 23435493296022 26039436995580 31247324394696 39059155493370 46870986592044 52078873991160 58588733240055 78118310986740 93741973184088 117177466480110 156236621973480 234354932960220 468709865920440