79947540774 has 48 divisors (see below), whose sum is σ = 174276975600. Its totient is φ = 26486673408.

The previous prime is 79947540769. The next prime is 79947540781. The reversal of 79947540774 is 47704574997.

79947540774 is a `hidden beast` number, since 7 + 9 + 94 + 75 + 407 + 74 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7705062 + ... + 7715430.

It is an arithmetic number, because the mean of its divisors is an integer number (3630770325).

Almost surely, 2^79947540774 is an apocalyptic number.

79947540774 is an abundant number, since it is smaller than the sum of its proper divisors (94329434826).

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

79947540774 is a wasteful number, since it uses less digits than its factorization.

79947540774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12949 (or 12946 counting only the distinct ones).

The product of its (nonzero) digits is 62233920, while the sum is 63.

The spelling of 79947540774 in words is "seventy-nine billion, nine hundred forty-seven million, five hundred forty thousand, seven hundred seventy-four".