79517097057 has 16 divisors (see below), whose sum is σ = 109450593792. Its totient is φ = 51297740160.

The previous prime is 79517097017. The next prime is 79517097097. The reversal of 79517097057 is 75079071597.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (79517097017) and next prime (79517097097).

It is not a de Polignac number, because 79517097057 - 2⁶ = 79517096993 is a prime.

It is a super-2 number, since 2×79517097057² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79517096988 and 79517097006.

It is not an unprimeable number, because it can be changed into a prime (79517097017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2114503 + ... + 2151779.

It is an arithmetic number, because the mean of its divisors is an integer number (6840662112).

Almost surely, 2^79517097057 is an apocalyptic number.

It is an amenable number.

79517097057 is a deficient number, since it is larger than the sum of its proper divisors (29933496735).

79517097057 is a wasteful number, since it uses less digits than its factorization.

79517097057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60248.

The product of its (nonzero) digits is 4862025, while the sum is 57.

The spelling of 79517097057 in words is "seventy-nine billion, five hundred seventeen million, ninety-seven thousand, fifty-seven".