115891831008 has 72 divisors (see below), whose sum is σ = 330170343048. Its totient is φ = 38559935232.

The previous prime is 115891830997. The next prime is 115891831019. The reversal of 115891831008 is 800138198511.

It is an interprime number because it is at equal distance from previous prime (115891830997) and next prime (115891831019).

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210291 + ... + 525362.

It is an arithmetic number, because the mean of its divisors is an integer number (4585699209).

Almost surely, 2^115891831008 is an apocalyptic number.

115891831008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

115891831008 is an abundant number, since it is smaller than the sum of its proper divisors (214278512040).

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

115891831008 is a wasteful number, since it uses less digits than its factorization.

115891831008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736216 (or 736205 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 45.

The spelling of 115891831008 in words is "one hundred fifteen billion, eight hundred ninety-one million, eight hundred thirty-one thousand, eight".