79551964768 has 48 divisors (see below), whose sum is σ = 159524515584. Its totient is φ = 39042747520.

The previous prime is 79551964757. The next prime is 79551964769. The reversal of 79551964768 is 86746915597.

It is a super-2 number, since 2×79551964768² (a number of 23 digits) contains 22 as substring.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438621 + ... + 592867.

It is an arithmetic number, because the mean of its divisors is an integer number (3323427408).

Almost surely, 2^79551964768 is an apocalyptic number.

It is an amenable number.

79551964768 is an abundant number, since it is smaller than the sum of its proper divisors (79972550816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79551964768 is a wasteful number, since it uses less digits than its factorization.

79551964768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154555 (or 154547 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 67.

The spelling of 79551964768 in words is "seventy-nine billion, five hundred fifty-one million, nine hundred sixty-four thousand, seven hundred sixty-eight".