79338834505 has 32 divisors (see below), whose sum is σ = 115229157120. Its totient is φ = 51194142720.

The previous prime is 79338834499. The next prime is 79338834551. The reversal of 79338834505 is 50543883397.

It is not a de Polignac number, because 79338834505 - 2²⁹ = 78801963593 is a prime.

It is a super-2 number, since 2×79338834505² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4847626 + ... + 4863964.

It is an arithmetic number, because the mean of its divisors is an integer number (3600911160).

Almost surely, 2^79338834505 is an apocalyptic number.

It is an amenable number.

79338834505 is a deficient number, since it is larger than the sum of its proper divisors (35890322615).

79338834505 is a wasteful number, since it uses less digits than its factorization.

79338834505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24529.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 79338834505 in words is "seventy-nine billion, three hundred thirty-eight million, eight hundred thirty-four thousand, five hundred five".