64801365402 has 16 divisors (see below), whose sum is σ = 129677536800. Its totient is φ = 21587987472.

The previous prime is 64801365397. The next prime is 64801365413. The reversal of 64801365402 is 20456310846.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3105652 + ... + 3126447.

It is an arithmetic number, because the mean of its divisors is an integer number (8104846050).

Almost surely, 2^64801365402 is an apocalyptic number.

64801365402 is an abundant number, since it is smaller than the sum of its proper divisors (64876171398).

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

64801365402 is a wasteful number, since it uses less digits than its factorization.

64801365402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6233837.

The product of its (nonzero) digits is 138240, while the sum is 39.

It can be divided in two parts, 648013 and 65402, that added together give a triangular number (713415 = T₁₁₉₄).

The spelling of 64801365402 in words is "sixty-four billion, eight hundred one million, three hundred sixty-five thousand, four hundred two".