115715400451508 has 48 divisors (see below), whose sum is σ = 239479915678080. Its totient is φ = 48230380368000.

The previous prime is 115715400451481. The next prime is 115715400451513. The reversal of 115715400451508 is 805154004517511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669780023 + ... + 669952766.

It is an arithmetic number, because the mean of its divisors is an integer number (4989164909960).

Almost surely, 2^{115715400451508} is an apocalyptic number.

It is an amenable number.

115715400451508 is an abundant number, since it is smaller than the sum of its proper divisors (123764515226572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115715400451508 is a wasteful number, since it uses less digits than its factorization.

115715400451508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339732968 (or 1339732966 counting only the distinct ones).

The product of its (nonzero) digits is 560000, while the sum is 47.

The spelling of 115715400451508 in words is "one hundred fifteen trillion, seven hundred fifteen billion, four hundred million, four hundred fifty-one thousand, five hundred eight".