64574124972 has 48 divisors (see below), whose sum is σ = 173902616832. Its totient is φ = 18267076800.

The previous prime is 64574124949. The next prime is 64574125009. The reversal of 64574124972 is 27942147546.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3797158 + ... + 3814125.

It is an arithmetic number, because the mean of its divisors is an integer number (3622971184).

Almost surely, 2^64574124972 is an apocalyptic number.

It is an amenable number.

64574124972 is an abundant number, since it is smaller than the sum of its proper divisors (109328491860).

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

64574124972 is a wasteful number, since it uses less digits than its factorization.

64574124972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7611398 (or 7611396 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 51.

The spelling of 64574124972 in words is "sixty-four billion, five hundred seventy-four million, one hundred twenty-four thousand, nine hundred seventy-two".