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468687949786865 = 52310157769934063
BaseRepresentation
bin110101010010001001110101…
…0110000011110111011110001
32021110111010112001221011220002
41222210103222300132323301
5442412440410121134430
64340452134404555345
7200502405213534164
oct15244235260367361
92243433461834802
10468687949786865
1112637a496a920a6
1244696a460b2b55
131716a1127943a3
1483a4891395adb
15392b9b0d60845
hex1aa44eac1eef1

468687949786865 has 32 divisors (see below), whose sum is σ = 593716705514496. Its totient is φ = 354481773465600.

The previous prime is 468687949786841. The next prime is 468687949786897. The reversal of 468687949786865 is 568687949786864.

It is not a de Polignac number, because 468687949786865 - 26 = 468687949786801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (101).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28265177 + ... + 41668886.

It is an arithmetic number, because the mean of its divisors is an integer number (18553647047328).

Almost surely, 2468687949786865 is an apocalyptic number.

It is an amenable number.

468687949786865 is a deficient number, since it is larger than the sum of its proper divisors (125028755727631).

468687949786865 is a wasteful number, since it uses less digits than its factorization.

468687949786865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69934769.

The product of its digits is 1685528248320, while the sum is 101.

Subtracting 468687949786865 from its reverse (568687949786864), we obtain a palindrome (99999999999999).

The spelling of 468687949786865 in words is "four hundred sixty-eight trillion, six hundred eighty-seven billion, nine hundred forty-nine million, seven hundred eighty-six thousand, eight hundred sixty-five".

Divisors: 1 5 23 101 115 505 577 2323 2885 11615 13271 58277 66355 291385 1340371 6701855 69934063 349670315 1608483449 7063340363 8042417245 35316701815 40351954351 162456828349 201759771755 812284141745 928094950073 4075547389451 4640474750365 20377736947255 93737589957373 468687949786865