18986571054 has 48 divisors (see below), whose sum is σ = 46325021184. Its totient is φ = 5567907600.

The previous prime is 18986571041. The next prime is 18986571061. The reversal of 18986571054 is 45017568981.

It is a happy number.

18986571054 is a `hidden beast` number, since 18 + 9 + 8 + 6 + 571 + 0 + 54 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1540504 + ... + 1552779.

It is an arithmetic number, because the mean of its divisors is an integer number (965104608).

Almost surely, 2^18986571054 is an apocalyptic number.

18986571054 is an abundant number, since it is smaller than the sum of its proper divisors (27338450130).

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

18986571054 is a wasteful number, since it uses less digits than its factorization.

18986571054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093333 (or 3093330 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 54.

The spelling of 18986571054 in words is "eighteen billion, nine hundred eighty-six million, five hundred seventy-one thousand, fifty-four".