115913887508 has 24 divisors (see below), whose sum is σ = 207822842304. Its totient is φ = 56536286400.

The previous prime is 115913887501. The next prime is 115913887519. The reversal of 115913887508 is 805788319511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115913887501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1417703 + ... + 1497233.

It is an arithmetic number, because the mean of its divisors is an integer number (8659285096).

Almost surely, 2^115913887508 is an apocalyptic number.

It is an amenable number.

115913887508 is a deficient number, since it is larger than the sum of its proper divisors (91908954796).

115913887508 is a wasteful number, since it uses less digits than its factorization.

115913887508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88463 (or 88461 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 56.

The spelling of 115913887508 in words is "one hundred fifteen billion, nine hundred thirteen million, eight hundred eighty-seven thousand, five hundred eight".