79011388965 has 16 divisors (see below), whose sum is σ = 129834931968. Its totient is φ = 41000504256.

The previous prime is 79011388961. The next prime is 79011388987. The reversal of 79011388965 is 56988311097.

It is not a de Polignac number, because 79011388965 - 2² = 79011388961 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79011388961) 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 15 ways as a sum of consecutive naturals, for example, 71180877 + ... + 71181986.

It is an arithmetic number, because the mean of its divisors is an integer number (8114683248).

Almost surely, 2^79011388965 is an apocalyptic number.

It is an amenable number.

79011388965 is a deficient number, since it is larger than the sum of its proper divisors (50823543003).

79011388965 is a wasteful number, since it uses less digits than its factorization.

79011388965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142362908.

The product of its (nonzero) digits is 3265920, while the sum is 57.

The spelling of 79011388965 in words is "seventy-nine billion, eleven million, three hundred eighty-eight thousand, nine hundred sixty-five".