79931129154 has 32 divisors (see below), whose sum is σ = 160328082240. Its totient is φ = 26566176000.

The previous prime is 79931129111. The next prime is 79931129207. The reversal of 79931129154 is 45192113997.

It is a junction number, because it is equal to n+sod(n) for n = 79931129097 and 79931129106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3273262 + ... + 3297590.

It is an arithmetic number, because the mean of its divisors is an integer number (5010252570).

Almost surely, 2^79931129154 is an apocalyptic number.

79931129154 is an abundant number, since it is smaller than the sum of its proper divisors (80396953086).

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

79931129154 is a wasteful number, since it uses less digits than its factorization.

79931129154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25906.

The product of its digits is 612360, while the sum is 51.

The spelling of 79931129154 in words is "seventy-nine billion, nine hundred thirty-one million, one hundred twenty-nine thousand, one hundred fifty-four".