115520878290 has 64 divisors (see below), whose sum is σ = 282229650432. Its totient is φ = 30253843200.

The previous prime is 115520878283. The next prime is 115520878301. The reversal of 115520878290 is 92878025511.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1146655 + ... + 1243325.

It is an arithmetic number, because the mean of its divisors is an integer number (4409838288).

Almost surely, 2^115520878290 is an apocalyptic number.

115520878290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 115520878290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141114825216).

115520878290 is an abundant number, since it is smaller than the sum of its proper divisors (166708772142).

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

115520878290 is a wasteful number, since it uses less digits than its factorization.

115520878290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97395.

The product of its (nonzero) digits is 403200, while the sum is 48.

The spelling of 115520878290 in words is "one hundred fifteen billion, five hundred twenty million, eight hundred seventy-eight thousand, two hundred ninety".