79551964767 has 32 divisors (see below), whose sum is σ = 116214817536. Its totient is φ = 48004070400.

The previous prime is 79551964757. The next prime is 79551964769. The reversal of 79551964767 is 76746915597.

It is a de Polignac number, because none of the positive numbers 2^k-79551964767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79551964698 and 79551964707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79551964769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15061167 + ... + 15066447.

It is an arithmetic number, because the mean of its divisors is an integer number (3631713048).

Almost surely, 2^79551964767 is an apocalyptic number.

79551964767 is a deficient number, since it is larger than the sum of its proper divisors (36662852769).

79551964767 is a wasteful number, since it uses less digits than its factorization.

79551964767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7191.

The product of its digits is 100018800, while the sum is 66.

The spelling of 79551964767 in words is "seventy-nine billion, five hundred fifty-one million, nine hundred sixty-four thousand, seven hundred sixty-seven".