64044785866952 has 32 divisors (see below), whose sum is σ = 131017518446400. Its totient is φ = 29107528507200.

The previous prime is 64044785866951. The next prime is 64044785866961. The reversal of 64044785866952 is 25966858744046.

It is a self number, because there is not a number n which added to its sum of digits gives 64044785866952.

It is not an unprimeable number, because it can be changed into a prime (64044785866951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46033124 + ... + 47403987.

It is an arithmetic number, because the mean of its divisors is an integer number (4094297451450).

Almost surely, 2^{64044785866952} is an apocalyptic number.

It is an amenable number.

64044785866952 is an abundant number, since it is smaller than the sum of its proper divisors (66972732579448).

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

64044785866952 is a wasteful number, since it uses less digits than its factorization.

64044785866952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93444917 (or 93444913 counting only the distinct ones).

The product of its (nonzero) digits is 2786918400, while the sum is 74.

The spelling of 64044785866952 in words is "sixty-four trillion, forty-four billion, seven hundred eighty-five million, eight hundred sixty-six thousand, nine hundred fifty-two".