709818856164 has 72 divisors (see below), whose sum is σ = 1971461288160. Its totient is φ = 213549148800.

The previous prime is 709818856157. The next prime is 709818856193. The reversal of 709818856164 is 461658818907.

709818856164 is a `hidden beast` number, since 7 + 0 + 9 + 8 + 1 + 8 + 8 + 5 + 616 + 4 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6392697 + ... + 6502784.

It is an arithmetic number, because the mean of its divisors is an integer number (27381406780).

Almost surely, 2^709818856164 is an apocalyptic number.

It is an amenable number.

709818856164 is an abundant number, since it is smaller than the sum of its proper divisors (1261642431996).

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

709818856164 is a wasteful number, since it uses less digits than its factorization.

709818856164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12895641 (or 12895636 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 63.

The spelling of 709818856164 in words is "seven hundred nine billion, eight hundred eighteen million, eight hundred fifty-six thousand, one hundred sixty-four".