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64368714402 = 23231809142591
BaseRepresentation
bin111011111100101011…
…001010001010100010
320011010222002111021100
4323330223022022202
52023311342330102
645323124535230
74436055021246
oct737453121242
9204128074240
1064368714402
1125331508933
1210584b51516
1360ba887cb5
143188b86426
151a1b05ba1c
hexefcaca2a2

64368714402 has 48 divisors (see below), whose sum is σ = 144143400960. Its totient is φ = 20738289600.

The previous prime is 64368714379. The next prime is 64368714409. The reversal of 64368714402 is 20441786346.

It is not an unprimeable number, because it can be changed into a prime (64368714409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 380127 + ... + 522717.

It is an arithmetic number, because the mean of its divisors is an integer number (3002987520).

Almost surely, 264368714402 is an apocalyptic number.

64368714402 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 64368714402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72071700480).

64368714402 is an abundant number, since it is smaller than the sum of its proper divisors (79774686558).

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

64368714402 is a wasteful number, since it uses less digits than its factorization.

64368714402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143439 (or 143436 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 64368714402 in words is "sixty-four billion, three hundred sixty-eight million, seven hundred fourteen thousand, four hundred two".

Divisors: 1 2 3 6 9 18 31 62 93 186 279 558 809 1618 2427 4854 7281 14562 25079 50158 75237 142591 150474 225711 285182 427773 451422 855546 1283319 2566638 4420321 8840642 13260963 26521926 39782889 79565778 115356119 230712238 346068357 692136714 1038205071 2076410142 3576039689 7152079378 10728119067 21456238134 32184357201 64368714402