79822537580472 has 128 divisors (see below), whose sum is σ = 207868854528000. Its totient is φ = 25515625766400.

The previous prime is 79822537580431. The next prime is 79822537580473. The reversal of 79822537580472 is 27408573522897.

It is a junction number, because it is equal to n+sod(n) for n = 79822537580397 and 79822537580406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79822537580473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45815203 + ... + 47525549.

It is an arithmetic number, because the mean of its divisors is an integer number (1623975426000).

Almost surely, 2^{79822537580472} 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 79822537580472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103934427264000).

79822537580472 is an abundant number, since it is smaller than the sum of its proper divisors (128046316947528).

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

79822537580472 is a wasteful number, since it uses less digits than its factorization.

79822537580472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710957 (or 1710953 counting only the distinct ones).

The product of its (nonzero) digits is 474163200, while the sum is 69.

The spelling of 79822537580472 in words is "seventy-nine trillion, eight hundred twenty-two billion, five hundred thirty-seven million, five hundred eighty thousand, four hundred seventy-two".