79659948503 has 16 divisors (see below), whose sum is σ = 80754425856. Its totient is φ = 78573862080.

The previous prime is 79659948479. The next prime is 79659948509. The reversal of 79659948503 is 30584995697.

It is a cyclic number.

It is not a de Polignac number, because 79659948503 - 2²⁶ = 79592839639 is a prime.

It is a super-2 number, since 2×79659948503² (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 79659948503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79659948509) 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, 24351758 + ... + 24355028.

It is an arithmetic number, because the mean of its divisors is an integer number (5047151616).

Almost surely, 2^79659948503 is an apocalyptic number.

79659948503 is a deficient number, since it is larger than the sum of its proper divisors (1094477353).

79659948503 is a wasteful number, since it uses less digits than its factorization.

79659948503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4454.

The product of its (nonzero) digits is 73483200, while the sum is 65.

The spelling of 79659948503 in words is "seventy-nine billion, six hundred fifty-nine million, nine hundred forty-eight thousand, five hundred three".