115178755913 has 16 divisors (see below), whose sum is σ = 127407524496. Its totient is φ = 103431997440.

The previous prime is 115178755871. The next prime is 115178755943. The reversal of 115178755913 is 319557871511.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 19878744064 + 95300011849 = 140992^2 + 308707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115178755913 is a prime.

It is a super-2 number, since 2×115178755913² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (115178755943) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7299953 + ... + 7315713.

It is an arithmetic number, because the mean of its divisors is an integer number (7962970281).

Almost surely, 2^115178755913 is an apocalyptic number.

115178755913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

115178755913 is a deficient number, since it is larger than the sum of its proper divisors (12228768583).

115178755913 is a wasteful number, since it uses less digits than its factorization.

115178755913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31004.

The product of its digits is 1323000, while the sum is 53.

The spelling of 115178755913 in words is "one hundred fifteen billion, one hundred seventy-eight million, seven hundred fifty-five thousand, nine hundred thirteen".