79684193700 has 108 divisors (see below), whose sum is σ = 250389669348. Its totient is φ = 21196032000.

The previous prime is 79684193671. The next prime is 79684193723. The reversal of 79684193700 is 739148697.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 17165192256 + 62519001444 = 131016^2 + 250038^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 250504 + ... + 471296.

Almost surely, 2^79684193700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79684193700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125194834674).

79684193700 is an abundant number, since it is smaller than the sum of its proper divisors (170705475648).

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

79684193700 is a wasteful number, since it uses less digits than its factorization.

79684193700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221214 (or 221204 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 79684193700 in words is "seventy-nine billion, six hundred eighty-four million, one hundred ninety-three thousand, seven hundred".