79111552947 has 16 divisors (see below), whose sum is σ = 120557886720. Its totient is φ = 45203995872.

The previous prime is 79111552931. The next prime is 79111552963. The reversal of 79111552947 is 74925511197.

It is an interprime number because it is at equal distance from previous prime (79111552931) and next prime (79111552963).

It is not a de Polignac number, because 79111552947 - 2⁴ = 79111552931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79111552947.

It is not an unprimeable number, because it can be changed into a prime (79111552987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300204 + ... + 498342.

It is an arithmetic number, because the mean of its divisors is an integer number (7534867920).

Almost surely, 2^79111552947 is an apocalyptic number.

79111552947 is a deficient number, since it is larger than the sum of its proper divisors (41446333773).

79111552947 is a wasteful number, since it uses less digits than its factorization.

79111552947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217162.

The product of its digits is 793800, while the sum is 51.

The spelling of 79111552947 in words is "seventy-nine billion, one hundred eleven million, five hundred fifty-two thousand, nine hundred forty-seven".