115128422590 has 16 divisors (see below), whose sum is σ = 210628393920. Its totient is φ = 45296428320.

The previous prime is 115128422557. The next prime is 115128422641. The reversal of 115128422590 is 95224821511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94366950 + ... + 94368169.

It is an arithmetic number, because the mean of its divisors is an integer number (13164274620).

Almost surely, 2^115128422590 is an apocalyptic number.

115128422590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115128422590 is a deficient number, since it is larger than the sum of its proper divisors (95499971330).

115128422590 is a wasteful number, since it uses less digits than its factorization.

115128422590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188735187.

The product of its (nonzero) digits is 57600, while the sum is 40.

The spelling of 115128422590 in words is "one hundred fifteen billion, one hundred twenty-eight million, four hundred twenty-two thousand, five hundred ninety".