18139076706987 has 24 divisors (see below), whose sum is σ = 27056656864640. Its totient is φ = 11698052970240.

The previous prime is 18139076706979. The next prime is 18139076706997. The reversal of 18139076706987 is 78960767093181.

18139076706987 is a `hidden beast` number, since 1 + 81 + 390 + 7 + 6 + 70 + 6 + 98 + 7 = 666.

It is not a de Polignac number, because 18139076706987 - 2³ = 18139076706979 is a prime.

It is a super-2 number, since 2×18139076706987² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18139076706917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11999662 + ... + 13426467.

Almost surely, 2^{18139076706987} is an apocalyptic number.

18139076706987 is a deficient number, since it is larger than the sum of its proper divisors (8917580157653).

18139076706987 is a wasteful number, since it uses less digits than its factorization.

18139076706987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25428723 (or 25428720 counting only the distinct ones).

The product of its (nonzero) digits is 192036096, while the sum is 72.

The spelling of 18139076706987 in words is "eighteen trillion, one hundred thirty-nine billion, seventy-six million, seven hundred six thousand, nine hundred eighty-seven".