18086496867 has 48 divisors (see below), whose sum is σ = 27664685568. Its totient is φ = 11363742720.

The previous prime is 18086496859. The next prime is 18086496887. The reversal of 18086496867 is 76869468081.

18086496867 is a `hidden beast` number, since 1 + 8 + 0 + 86 + 496 + 8 + 67 = 666.

It is not a de Polignac number, because 18086496867 - 2³ = 18086496859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18086496887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4272642 + ... + 4276872.

It is an arithmetic number, because the mean of its divisors is an integer number (576347616).

Almost surely, 2^18086496867 is an apocalyptic number.

18086496867 is a deficient number, since it is larger than the sum of its proper divisors (9578188701).

18086496867 is a wasteful number, since it uses less digits than its factorization.

18086496867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4560 (or 4557 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 18086496867 in words is "eighteen billion, eighty-six million, four hundred ninety-six thousand, eight hundred sixty-seven".