79930930968 has 192 divisors, whose sum is σ = 257870745600. Its totient is φ = 21885707520.

The previous prime is 79930930967. The next prime is 79930930993. The reversal of 79930930968 is 86903903997.

It is a super-2 number, since 2×79930930968² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79930930967) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1584438 + ... + 1634106.

It is an arithmetic number, because the mean of its divisors is an integer number (1343076800).

Almost surely, 2^79930930968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79930930968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128935372800).

79930930968 is an abundant number, since it is smaller than the sum of its proper divisors (177939814632).

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

79930930968 is a wasteful number, since it uses less digits than its factorization.

79930930968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49822 (or 49815 counting only the distinct ones).

The product of its (nonzero) digits is 19840464, while the sum is 63.

The spelling of 79930930968 in words is "seventy-nine billion, nine hundred thirty million, nine hundred thirty thousand, nine hundred sixty-eight".