12690014208178 has 16 divisors (see below), whose sum is σ = 19700357308416. Its totient is φ = 6124297252320.

The previous prime is 12690014208167. The next prime is 12690014208341. The reversal of 12690014208178 is 87180241009621.

It is a super-2 number, since 2×12690014208178² (a number of 27 digits) contains 22 as substring.

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, 267179451 + ... + 267226942.

It is an arithmetic number, because the mean of its divisors is an integer number (1231272331776).

Almost surely, 2^{12690014208178} is an apocalyptic number.

12690014208178 is a deficient number, since it is larger than the sum of its proper divisors (7010343100238).

12690014208178 is a wasteful number, since it uses less digits than its factorization.

12690014208178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534406809.

The product of its (nonzero) digits is 387072, while the sum is 49.

The spelling of 12690014208178 in words is "twelve trillion, six hundred ninety billion, fourteen million, two hundred eight thousand, one hundred seventy-eight".