79371091800 has 2304 divisors, whose sum is σ = 389975040000. Its totient is φ = 14224896000.

The previous prime is 79371091783. The next prime is 79371091823. The reversal of 79371091800 is 819017397.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 2560357785 + ... + 2560357815.

It is an arithmetic number, because the mean of its divisors is an integer number (169260000).

Almost surely, 2^79371091800 is an apocalyptic number.

79371091800 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 79371091800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194987520000).

79371091800 is an abundant number, since it is smaller than the sum of its proper divisors (310603948200).

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

79371091800 is a wasteful number, since it uses less digits than its factorization.

79371091800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 45.

The spelling of 79371091800 in words is "seventy-nine billion, three hundred seventy-one million, ninety-one thousand, eight hundred".