79115077031 has 4 divisors (see below), whose sum is σ = 80456010600. Its totient is φ = 77774143464.

The previous prime is 79115077021. The next prime is 79115077061. The reversal of 79115077031 is 13077051197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13077051197 = 7 ⋅1868150171.

It is a cyclic number.

It is not a de Polignac number, because 79115077031 - 2²² = 79110882727 is a prime.

It is a super-2 number, since 2×79115077031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79115077031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79115077021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670466696 + ... + 670466813.

It is an arithmetic number, because the mean of its divisors is an integer number (20114002650).

Almost surely, 2^79115077031 is an apocalyptic number.

79115077031 is a deficient number, since it is larger than the sum of its proper divisors (1340933569).

79115077031 is a wasteful number, since it uses less digits than its factorization.

79115077031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340933568.

The product of its (nonzero) digits is 46305, while the sum is 41.

The spelling of 79115077031 in words is "seventy-nine billion, one hundred fifteen million, seventy-seven thousand, thirty-one".