115884778 has 12 divisors (see below), whose sum is σ = 178175430. Its totient is φ = 56527520.

The previous prime is 115884773. The next prime is 115884803. The reversal of 115884778 is 877488511.

It can be written as a sum of positive squares in 3 ways, for example, as 44262409 + 71622369 = 6653^2 + 8463^2 .

It is not an unprimeable number, because it can be changed into a prime (115884773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13873 + ... + 20596.

Almost surely, 2^115884778 is an apocalyptic number.

115884778 is a deficient number, since it is larger than the sum of its proper divisors (62290652).

115884778 is an equidigital number, since it uses as much as digits as its factorization.

115884778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34553 (or 34512 counting only the distinct ones).

The product of its digits is 501760, while the sum is 49.

The square root of 115884778 is about 10764.9792382522. The cubic root of 115884778 is about 487.5383662989.

The spelling of 115884778 in words is "one hundred fifteen million, eight hundred eighty-four thousand, seven hundred seventy-eight".