64624678500 has 96 divisors (see below), whose sum is σ = 192563699328. Its totient is φ = 16832457600.

The previous prime is 64624678477. The next prime is 64624678553. The reversal of 64624678500 is 587642646.

It is a self number, because there is not a number n which added to its sum of digits gives 64624678500.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 436467 + ... + 565466.

It is an arithmetic number, because the mean of its divisors is an integer number (2005871868).

Almost surely, 2^64624678500 is an apocalyptic number.

64624678500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64624678500 is an abundant number, since it is smaller than the sum of its proper divisors (127939020828).

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

64624678500 is a wasteful number, since it uses less digits than its factorization.

64624678500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001998 (or 1001986 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 64624678500 in words is "sixty-four billion, six hundred twenty-four million, six hundred seventy-eight thousand, five hundred".