18867117882 has 16 divisors (see below), whose sum is σ = 37811093472. Its totient is φ = 6276229680.

The previous prime is 18867117853. The next prime is 18867117911. The reversal of 18867117882 is 28871176881.

It is a happy number.

18867117882 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (18867117853) and next prime (18867117911).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3199213 + ... + 3205104.

It is an arithmetic number, because the mean of its divisors is an integer number (2363193342).

Almost surely, 2^18867117882 is an apocalyptic number.

18867117882 is an abundant number, since it is smaller than the sum of its proper divisors (18943975590).

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

18867117882 is a wasteful number, since it uses less digits than its factorization.

18867117882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404813.

The product of its digits is 2408448, while the sum is 57.

The spelling of 18867117882 in words is "eighteen billion, eight hundred sixty-seven million, one hundred seventeen thousand, eight hundred eighty-two".