79357865000 has 40 divisors (see below), whose sum is σ = 185935489410. Its totient is φ = 31743144000.

The previous prime is 79357864991. The next prime is 79357865017. The reversal of 79357865000 is 56875397.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 14834752804 + 64523112196 = 121798^2 + 254014^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a self number, because there is not a number n which added to its sum of digits gives 79357865000.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7930787 + ... + 7940786.

Almost surely, 2^79357865000 is an apocalyptic number.

It is an amenable number.

79357865000 is an abundant number, since it is smaller than the sum of its proper divisors (106577624410).

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

79357865000 is a wasteful number, since it uses less digits than its factorization.

79357865000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15871599 (or 15871580 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 50.

The spelling of 79357865000 in words is "seventy-nine billion, three hundred fifty-seven million, eight hundred sixty-five thousand".