64492896924 has 108 divisors (see below), whose sum is σ = 178428892824. Its totient is φ = 20366067168.

The previous prime is 64492896907. The next prime is 64492896973. The reversal of 64492896924 is 42969829446.

64492896924 is a `hidden beast` number, since 6 + 4 + 492 + 89 + 69 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (108).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 258994 + ... + 442790.

It is an arithmetic number, because the mean of its divisors is an integer number (1652119378).

Almost surely, 2^64492896924 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64492896924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89214446412).

64492896924 is an abundant number, since it is smaller than the sum of its proper divisors (113935995900).

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

64492896924 is a wasteful number, since it uses less digits than its factorization.

64492896924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183854 (or 183821 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 63.

The spelling of 64492896924 in words is "sixty-four billion, four hundred ninety-two million, eight hundred ninety-six thousand, nine hundred twenty-four".