64628462256 has 40 divisors (see below), whose sum is σ = 172713997680. Its totient is φ = 20799964416.

The previous prime is 64628462219. The next prime is 64628462263. The reversal of 64628462256 is 65226482646.

It is a junction number, because it is equal to n+sod(n) for n = 64628462199 and 64628462208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23212855 + ... + 23215638.

It is an arithmetic number, because the mean of its divisors is an integer number (4317849942).

Almost surely, 2^64628462256 is an apocalyptic number.

It is an amenable number.

64628462256 is an abundant number, since it is smaller than the sum of its proper divisors (108085535424).

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

64628462256 is a wasteful number, since it uses less digits than its factorization.

64628462256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46428533 (or 46428527 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 51.

The spelling of 64628462256 in words is "sixty-four billion, six hundred twenty-eight million, four hundred sixty-two thousand, two hundred fifty-six".