115705137700 has 18 divisors (see below), whose sum is σ = 251080149026. Its totient is φ = 46282055040.

The previous prime is 115705137677. The next prime is 115705137719. The reversal of 115705137700 is 7731507511.

It can be written as a sum of positive squares in 3 ways, for example, as 7644354624 + 108060783076 = 87432^2 + 328726^2 .

It is a super-2 number, since 2×115705137700² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115705137700.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 578525589 + ... + 578525788.

Almost surely, 2^115705137700 is an apocalyptic number.

115705137700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115705137700 is an abundant number, since it is smaller than the sum of its proper divisors (135375011326).

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

115705137700 is a wasteful number, since it uses less digits than its factorization.

115705137700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157051391 (or 1157051384 counting only the distinct ones).

The product of its (nonzero) digits is 25725, while the sum is 37.

The spelling of 115705137700 in words is "one hundred fifteen billion, seven hundred five million, one hundred thirty-seven thousand, seven hundred".