79874651136 has 88 divisors (see below), whose sum is σ = 243308712640. Its totient is φ = 22821322752.

The previous prime is 79874651099. The next prime is 79874651201. The reversal of 79874651136 is 63115647897.

It is a happy number.

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, 1835701 + ... + 1878708.

Almost surely, 2^79874651136 is an apocalyptic number.

It is an amenable number.

79874651136 is an abundant number, since it is smaller than the sum of its proper divisors (163434061504).

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

79874651136 is a wasteful number, since it uses less digits than its factorization.

79874651136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714439 (or 3714421 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 57.

The spelling of 79874651136 in words is "seventy-nine billion, eight hundred seventy-four million, six hundred fifty-one thousand, one hundred thirty-six".