18839020886 has 24 divisors (see below), whose sum is σ = 33173767440. Its totient is φ = 7999789392.

The previous prime is 18839020873. The next prime is 18839020891. The reversal of 18839020886 is 68802093881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 871130 + ... + 892493.

It is an arithmetic number, because the mean of its divisors is an integer number (1382240310).

Almost surely, 2^18839020886 is an apocalyptic number.

18839020886 is a deficient number, since it is larger than the sum of its proper divisors (14334746554).

18839020886 is a wasteful number, since it uses less digits than its factorization.

18839020886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763748 (or 1763741 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 53.

The spelling of 18839020886 in words is "eighteen billion, eight hundred thirty-nine million, twenty thousand, eight hundred eighty-six".