64407170564 has 48 divisors (see below), whose sum is σ = 134681460480. Its totient is φ = 26603727360.

The previous prime is 64407170563. The next prime is 64407170587. The reversal of 64407170564 is 46507170446.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (64407170561) by changing a digit.

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, 1462892 + ... + 1506275.

It is an arithmetic number, because the mean of its divisors is an integer number (2805863760).

Almost surely, 2^64407170564 is an apocalyptic number.

It is an amenable number.

64407170564 is an abundant number, since it is smaller than the sum of its proper divisors (70274289916).

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

64407170564 is a wasteful number, since it uses less digits than its factorization.

64407170564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969228 (or 2969226 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 64407170564 in words is "sixty-four billion, four hundred seven million, one hundred seventy thousand, five hundred sixty-four".