115812565579 has 2 divisors, whose sum is σ = 115812565580. Its totient is φ = 115812565578.

The previous prime is 115812565577. The next prime is 115812565613. The reversal of 115812565579 is 975565218511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115812565579 - 2¹ = 115812565577 is a prime.

Together with 115812565577, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (115812565577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57906282789 + 57906282790.

It is an arithmetic number, because the mean of its divisors is an integer number (57906282790).

Almost surely, 2^115812565579 is an apocalyptic number.

115812565579 is a deficient number, since it is larger than the sum of its proper divisors (1).

115812565579 is an equidigital number, since it uses as much as digits as its factorization.

115812565579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780000, while the sum is 55.

The spelling of 115812565579 in words is "one hundred fifteen billion, eight hundred twelve million, five hundred sixty-five thousand, five hundred seventy-nine".