115820772700 has 72 divisors (see below), whose sum is σ = 253940403024. Its totient is φ = 45849408000.

The previous prime is 115820772689. The next prime is 115820772701. The reversal of 115820772700 is 7277028511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115820772701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4521930 + ... + 4547470.

It is an arithmetic number, because the mean of its divisors is an integer number (3526950042).

Almost surely, 2^115820772700 is an apocalyptic number.

115820772700 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 115820772700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126970201512).

115820772700 is an abundant number, since it is smaller than the sum of its proper divisors (138119630324).

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

115820772700 is a wasteful number, since it uses less digits than its factorization.

115820772700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26023 (or 26016 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 40.

The spelling of 115820772700 in words is "one hundred fifteen billion, eight hundred twenty million, seven hundred seventy-two thousand, seven hundred".