64792647936 has 81 divisors (see below), whose sum is σ = 186848411659. Its totient is φ = 21593476608.

The previous prime is 64792647901. The next prime is 64792647937. The reversal of 64792647936 is 63974629746.

The square root of 64792647936 is 254544.

It is a perfect power (a square), and thus also a powerful number.

64792647936 is a `hidden beast` number, since 6 + 47 + 92 + 6 + 479 + 36 = 666.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64792647937) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12215461 + ... + 12220763.

Almost surely, 2^64792647936 is an apocalyptic number.

64792647936 is the 254544-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64792647936

64792647936 is an abundant number, since it is smaller than the sum of its proper divisors (122055763723).

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

64792647936 is an frugal number, since it uses more digits than its factorization.

64792647936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10628 (or 5308 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 63.

The spelling of 64792647936 in words is "sixty-four billion, seven hundred ninety-two million, six hundred forty-seven thousand, nine hundred thirty-six".