115777788 has 36 divisors (see below), whose sum is σ = 314255592. Its totient is φ = 33079200.

The previous prime is 115777771. The next prime is 115777789. The reversal of 115777788 is 887777511.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 115777788.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115777789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97863 + ... + 99038.

It is an arithmetic number, because the mean of its divisors is an integer number (8729322).

Almost surely, 2^115777788 is an apocalyptic number.

It is an amenable number.

115777788 is an abundant number, since it is smaller than the sum of its proper divisors (198477804).

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

115777788 is a wasteful number, since it uses less digits than its factorization.

115777788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196922 (or 196913 counting only the distinct ones).

The product of its digits is 768320, while the sum is 51.

The square root of 115777788 is about 10760.0087360559. The cubic root of 115777788 is about 487.3882810400.

The spelling of 115777788 in words is "one hundred fifteen million, seven hundred seventy-seven thousand, seven hundred eighty-eight".