79669517292 has 18 divisors (see below), whose sum is σ = 201386835468. Its totient is φ = 26556505752.

The previous prime is 79669517269. The next prime is 79669517297. The reversal of 79669517292 is 29271596697.

79669517292 is a `hidden beast` number, since 7 + 96 + 6 + 9 + 517 + 29 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (79669517297) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1106521038 + ... + 1106521109.

It is an arithmetic number, because the mean of its divisors is an integer number (11188157526).

Almost surely, 2^79669517292 is an apocalyptic number.

It is an amenable number.

79669517292 is an abundant number, since it is smaller than the sum of its proper divisors (121717318176).

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

79669517292 is a wasteful number, since it uses less digits than its factorization.

79669517292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213042157 (or 2213042152 counting only the distinct ones).

The product of its digits is 25719120, while the sum is 63.

The spelling of 79669517292 in words is "seventy-nine billion, six hundred sixty-nine million, five hundred seventeen thousand, two hundred ninety-two".