699999675920 has 80 divisors (see below), whose sum is σ = 1671704813568. Its totient is φ = 272396597760.

The previous prime is 699999675913. The next prime is 699999676043. The reversal of 699999675920 is 29576999996.

699999675920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (80).

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, 40149605 + ... + 40167035.

Almost surely, 2^699999675920 is an apocalyptic number.

It is an amenable number.

699999675920 is an abundant number, since it is smaller than the sum of its proper divisors (971705137648).

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

699999675920 is a wasteful number, since it uses less digits than its factorization.

699999675920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31048 (or 31042 counting only the distinct ones).

The product of its (nonzero) digits is 1339231320, while the sum is 80.

The spelling of 699999675920 in words is "six hundred ninety-nine billion, nine hundred ninety-nine million, six hundred seventy-five thousand, nine hundred twenty".