115522912787 has 4 divisors (see below), whose sum is σ = 115525239720. Its totient is φ = 115520585856.

The previous prime is 115522912783. The next prime is 115522912801. The reversal of 115522912787 is 787219225511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115522912787 - 2² = 115522912783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115522912783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1087337 + ... + 1188842.

It is an arithmetic number, because the mean of its divisors is an integer number (28881309930).

Almost surely, 2^115522912787 is an apocalyptic number.

115522912787 is a deficient number, since it is larger than the sum of its proper divisors (2326933).

115522912787 is an equidigital number, since it uses as much as digits as its factorization.

115522912787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326932.

The product of its digits is 705600, while the sum is 50.

The spelling of 115522912787 in words is "one hundred fifteen billion, five hundred twenty-two million, nine hundred twelve thousand, seven hundred eighty-seven".