670896929020864 has 56 divisors (see below), whose sum is σ = 1638536730507488. Its totient is φ = 265409774115840.

The previous prime is 670896929020819. The next prime is 670896929020873. The reversal of 670896929020864 is 468020929698076.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57597601407 + ... + 57597613054.

It is an arithmetic number, because the mean of its divisors is an integer number (29259584473348).

Almost surely, 2^{670896929020864} is an apocalyptic number.

670896929020864 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

670896929020864 is an abundant number, since it is smaller than the sum of its proper divisors (967639801486624).

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

670896929020864 is a wasteful number, since it uses less digits than its factorization.

670896929020864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115195214493 (or 115195214483 counting only the distinct ones).

The product of its (nonzero) digits is 1128701952, while the sum is 76.

The spelling of 670896929020864 in words is "six hundred seventy trillion, eight hundred ninety-six billion, nine hundred twenty-nine million, twenty thousand, eight hundred sixty-four".