79997548713 has 4 divisors (see below), whose sum is σ = 106663398288. Its totient is φ = 53331699140.

The previous prime is 79997548699. The next prime is 79997548723. The reversal of 79997548713 is 31784579997.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79997548713 - 2⁶ = 79997548649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79997548723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13332924783 + ... + 13332924788.

It is an arithmetic number, because the mean of its divisors is an integer number (26665849572).

Almost surely, 2^79997548713 is an apocalyptic number.

It is an amenable number.

79997548713 is a deficient number, since it is larger than the sum of its proper divisors (26665849575).

79997548713 is a wasteful number, since it uses less digits than its factorization.

79997548713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26665849574.

The product of its digits is 120022560, while the sum is 69.

The spelling of 79997548713 in words is "seventy-nine billion, nine hundred ninety-seven million, five hundred forty-eight thousand, seven hundred thirteen".