64562849928 has 64 divisors (see below), whose sum is σ = 182380968000. Its totient is φ = 21156183936.

The previous prime is 64562849921. The next prime is 64562849929. The reversal of 64562849928 is 82994826546.

64562849928 is a `hidden beast` number, since 6 + 4 + 562 + 8 + 49 + 9 + 28 = 666.

It is not an unprimeable number, because it can be changed into a prime (64562849921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2520325 + ... + 2545812.

It is an arithmetic number, because the mean of its divisors is an integer number (2849702625).

Almost surely, 2^64562849928 is an apocalyptic number.

It is an amenable number.

64562849928 is an abundant number, since it is smaller than the sum of its proper divisors (117818118072).

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

64562849928 is a wasteful number, since it uses less digits than its factorization.

64562849928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5066211 (or 5066201 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 63.

It can be divided in two parts, 645628 and 49928, that added together give a square (695556 = 834²).

The spelling of 64562849928 in words is "sixty-four billion, five hundred sixty-two million, eight hundred forty-nine thousand, nine hundred twenty-eight".