79137651880 has 192 divisors, whose sum is σ = 214346995200. Its totient is φ = 26192033280.

The previous prime is 79137651841. The next prime is 79137651883. The reversal of 79137651880 is 8815673197.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (79137651883) 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 47 ways as a sum of consecutive naturals, for example, 28373526 + ... + 28376314.

It is an arithmetic number, because the mean of its divisors is an integer number (1116390600).

Almost surely, 2^79137651880 is an apocalyptic number.

79137651880 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79137651880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107173497600).

79137651880 is an abundant number, since it is smaller than the sum of its proper divisors (135209343320).

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

79137651880 is a wasteful number, since it uses less digits than its factorization.

79137651880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312 (or 3301 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 55.

The spelling of 79137651880 in words is "seventy-nine billion, one hundred thirty-seven million, six hundred fifty-one thousand, eight hundred eighty".