79659503751 has 4 divisors (see below), whose sum is σ = 106212671672. Its totient is φ = 53106335832.

The previous prime is 79659503747. The next prime is 79659503753. The reversal of 79659503751 is 15730595697.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 79659503751 - 2² = 79659503747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79659503691 and 79659503700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79659503753) 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, 13276583956 + ... + 13276583961.

It is an arithmetic number, because the mean of its divisors is an integer number (26553167918).

Almost surely, 2^79659503751 is an apocalyptic number.

79659503751 is a deficient number, since it is larger than the sum of its proper divisors (26553167921).

79659503751 is a wasteful number, since it uses less digits than its factorization.

79659503751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26553167920.

The product of its (nonzero) digits is 8930250, while the sum is 57.

The spelling of 79659503751 in words is "seventy-nine billion, six hundred fifty-nine million, five hundred three thousand, seven hundred fifty-one".