18139604114856 has 160 divisors (see below), whose sum is σ = 56016035576640. Its totient is φ = 4877876473344.

The previous prime is 18139604114837. The next prime is 18139604114857. The reversal of 18139604114856 is 65841140693181.

It is a junction number, because it is equal to n+sod(n) for n = 18139604114796 and 18139604114805.

It is not an unprimeable number, because it can be changed into a prime (18139604114857) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8278996 + ... + 10238211.

It is an arithmetic number, because the mean of its divisors is an integer number (350100222354).

Almost surely, 2^{18139604114856} is an apocalyptic number.

It is an amenable number.

18139604114856 is an abundant number, since it is smaller than the sum of its proper divisors (37876431461784).

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

18139604114856 is a wasteful number, since it uses less digits than its factorization.

18139604114856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18517261 (or 18517236 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 57.

The spelling of 18139604114856 in words is "eighteen trillion, one hundred thirty-nine billion, six hundred four million, one hundred fourteen thousand, eight hundred fifty-six".