115722479520 has 192 divisors, whose sum is σ = 405232813440. Its totient is φ = 30843777024.

The previous prime is 115722479471. The next prime is 115722479533. The reversal of 115722479520 is 25974227511.

115722479520 is a `hidden beast` number, since 1 + 1 + 57 + 2 + 2 + 4 + 79 + 520 = 666.

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

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 10435899 + ... + 10446981.

It is an arithmetic number, because the mean of its divisors is an integer number (2110587570).

Almost surely, 2^115722479520 is an apocalyptic number.

115722479520 is a gapful number since it is divisible by the number (10) 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 115722479520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202616406720).

115722479520 is an abundant number, since it is smaller than the sum of its proper divisors (289510333920).

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

115722479520 is a wasteful number, since it uses less digits than its factorization.

115722479520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13524 (or 13510 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 115722479520 in words is "one hundred fifteen billion, seven hundred twenty-two million, four hundred seventy-nine thousand, five hundred twenty".