79990481097 has 8 divisors (see below), whose sum is σ = 118504416480. Its totient is φ = 53326987380.

The previous prime is 79990481071. The next prime is 79990481111. The reversal of 79990481097 is 79018409997.

It is not a de Polignac number, because 79990481097 - 2⁸ = 79990480841 is a prime.

It is a super-2 number, since 2×79990481097² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79990481017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1481305179 + ... + 1481305232.

It is an arithmetic number, because the mean of its divisors is an integer number (14813052060).

Almost surely, 2^79990481097 is an apocalyptic number.

It is an amenable number.

79990481097 is a deficient number, since it is larger than the sum of its proper divisors (38513935383).

79990481097 is a wasteful number, since it uses less digits than its factorization.

79990481097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2962610420 (or 2962610414 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 63.

The spelling of 79990481097 in words is "seventy-nine billion, nine hundred ninety million, four hundred eighty-one thousand, ninety-seven".