64020525498 has 40 divisors (see below), whose sum is σ = 151003585920. Its totient is φ = 20217007080.

The previous prime is 64020525487. The next prime is 64020525529. The reversal of 64020525498 is 89452502046.

64020525498 is a `hidden beast` number, since 64 + 0 + 20 + 525 + 49 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10396618 + ... + 10402773.

It is an arithmetic number, because the mean of its divisors is an integer number (3775089648).

Almost surely, 2^64020525498 is an apocalyptic number.

64020525498 is an abundant number, since it is smaller than the sum of its proper divisors (86983060422).

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

64020525498 is a wasteful number, since it uses less digits than its factorization.

64020525498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20799424 (or 20799415 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 64020525498 in words is "sixty-four billion, twenty million, five hundred twenty-five thousand, four hundred ninety-eight".