12387331078458 has 32 divisors (see below), whose sum is σ = 28315601026944. Its totient is φ = 3539024773632.

The previous prime is 12387331078433. The next prime is 12387331078471. The reversal of 12387331078458 is 85487013378321.

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, 8153635 + ... + 9552822.

It is an arithmetic number, because the mean of its divisors is an integer number (884862532092).

Almost surely, 2^{12387331078458} is an apocalyptic number.

12387331078458 is an abundant number, since it is smaller than the sum of its proper divisors (15928269948486).

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

12387331078458 is a wasteful number, since it uses less digits than its factorization.

12387331078458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17723126.

The product of its (nonzero) digits is 27095040, while the sum is 60.

The spelling of 12387331078458 in words is "twelve trillion, three hundred eighty-seven billion, three hundred thirty-one million, seventy-eight thousand, four hundred fifty-eight".