12917059027978 has 32 divisors (see below), whose sum is σ = 23274951070464. Its totient is φ = 5256540845952.

The previous prime is 12917059027919. The next prime is 12917059027993. The reversal of 12917059027978 is 87972095071921.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146361325 + ... + 146449552.

It is an arithmetic number, because the mean of its divisors is an integer number (727342220952).

Almost surely, 2^{12917059027978} is an apocalyptic number.

12917059027978 is a deficient number, since it is larger than the sum of its proper divisors (10357892042486).

12917059027978 is a wasteful number, since it uses less digits than its factorization.

12917059027978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292811046.

The product of its (nonzero) digits is 40007520, while the sum is 67.

The spelling of 12917059027978 in words is "twelve trillion, nine hundred seventeen billion, fifty-nine million, twenty-seven thousand, nine hundred seventy-eight".