115115212657 has 8 divisors (see below), whose sum is σ = 121789008000. Its totient is φ = 108502927344.

The previous prime is 115115212651. The next prime is 115115212669. The reversal of 115115212657 is 756212511511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115115212657 - 2⁷ = 115115212529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115115212651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15373657 + ... + 15381142.

It is an arithmetic number, because the mean of its divisors is an integer number (15223626000).

Almost surely, 2^115115212657 is an apocalyptic number.

It is an amenable number.

115115212657 is a deficient number, since it is larger than the sum of its proper divisors (6673795343).

115115212657 is a wasteful number, since it uses less digits than its factorization.

115115212657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30755015.

The product of its digits is 21000, while the sum is 37.

The spelling of 115115212657 in words is "one hundred fifteen billion, one hundred fifteen million, two hundred twelve thousand, six hundred fifty-seven".