12579690078 has 24 divisors (see below), whose sum is σ = 27261264888. Its totient is φ = 4192419312.

The previous prime is 12579690061. The next prime is 12579690089. The reversal of 12579690078 is 87009697521.

12579690078 is a `hidden beast` number, since 1 + 2 + 579 + 69 + 0 + 0 + 7 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32100 + ... + 161832.

It is an arithmetic number, because the mean of its divisors is an integer number (1135886037).

Almost surely, 2^12579690078 is an apocalyptic number.

12579690078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12579690078 is an abundant number, since it is smaller than the sum of its proper divisors (14681574810).

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

12579690078 is a wasteful number, since it uses less digits than its factorization.

12579690078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135128 (or 135125 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The spelling of 12579690078 in words is "twelve billion, five hundred seventy-nine million, six hundred ninety thousand, seventy-eight".