979118938091 has 8 divisors (see below), whose sum is σ = 1177887444480. Its totient is φ = 795074024808.

The previous prime is 979118938081. The next prime is 979118938141. The reversal of 979118938091 is 190839811979.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 979118938091 - 2²⁶ = 979051829227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979118938081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3680898131 + ... + 3680898396.

It is an arithmetic number, because the mean of its divisors is an integer number (147235930560).

Almost surely, 2^979118938091 is an apocalyptic number.

979118938091 is a deficient number, since it is larger than the sum of its proper divisors (198768506389).

979118938091 is a wasteful number, since it uses less digits than its factorization.

979118938091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7361796553.

The product of its (nonzero) digits is 8817984, while the sum is 65.

The spelling of 979118938091 in words is "nine hundred seventy-nine billion, one hundred eighteen million, nine hundred thirty-eight thousand, ninety-one".