115126472978 has 16 divisors (see below), whose sum is σ = 189826860960. Its totient is φ = 51930746400.

The previous prime is 115126472927. The next prime is 115126472987. The reversal of 115126472978 is 879274621511.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19970483 + ... + 19976246.

It is an arithmetic number, because the mean of its divisors is an integer number (11864178810).

Almost surely, 2^115126472978 is an apocalyptic number.

115126472978 is a deficient number, since it is larger than the sum of its proper divisors (74700387982).

115126472978 is a wasteful number, since it uses less digits than its factorization.

115126472978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39946873.

The product of its digits is 1693440, while the sum is 53.

The spelling of 115126472978 in words is "one hundred fifteen billion, one hundred twenty-six million, four hundred seventy-two thousand, nine hundred seventy-eight".