115188478315 has 16 divisors (see below), whose sum is σ = 143227662336. Its totient is φ = 88839064800.

The previous prime is 115188478313. The next prime is 115188478319. The reversal of 115188478315 is 513874881511.

It is a happy number.

It is not a de Polignac number, because 115188478315 - 2¹ = 115188478313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115188478313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1372071 + ... + 1453600.

It is an arithmetic number, because the mean of its divisors is an integer number (8951728896).

Almost surely, 2^115188478315 is an apocalyptic number.

115188478315 is a deficient number, since it is larger than the sum of its proper divisors (28039184021).

115188478315 is a wasteful number, since it uses less digits than its factorization.

115188478315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825970.

The product of its digits is 1075200, while the sum is 52.

The spelling of 115188478315 in words is "one hundred fifteen billion, one hundred eighty-eight million, four hundred seventy-eight thousand, three hundred fifteen".