79154392868 has 12 divisors (see below), whose sum is σ = 141898728972. Its totient is φ = 38611898880.

The previous prime is 79154392847. The next prime is 79154392873. The reversal of 79154392868 is 86829345197.

It can be written as a sum of positive squares in 2 ways, for example, as 4695264484 + 74459128384 = 68522^2 + 272872^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 79154392868.

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 3 ways as a sum of consecutive naturals, for example, 241324205 + ... + 241324532.

It is an arithmetic number, because the mean of its divisors is an integer number (11824894081).

Almost surely, 2^79154392868 is an apocalyptic number.

It is an amenable number.

79154392868 is a deficient number, since it is larger than the sum of its proper divisors (62744336104).

79154392868 is a wasteful number, since it uses less digits than its factorization.

79154392868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482648782 (or 482648780 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 62.

The spelling of 79154392868 in words is "seventy-nine billion, one hundred fifty-four million, three hundred ninety-two thousand, eight hundred sixty-eight".