79925111808 has 176 divisors, whose sum is σ = 228052176000. Its totient is φ = 24810651648.

The previous prime is 79925111797. The next prime is 79925111813. The reversal of 79925111808 is 80811152997.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3432108 + ... + 3455316.

It is an arithmetic number, because the mean of its divisors is an integer number (1295751000).

Almost surely, 2^79925111808 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 79925111808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114026088000).

79925111808 is an abundant number, since it is smaller than the sum of its proper divisors (148127064192).

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

79925111808 is a wasteful number, since it uses less digits than its factorization.

79925111808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23310 (or 23292 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 51.

The spelling of 79925111808 in words is "seventy-nine billion, nine hundred twenty-five million, one hundred eleven thousand, eight hundred eight".