18589857716 has 24 divisors (see below), whose sum is σ = 34564531680. Its totient is φ = 8723421792.

The previous prime is 18589857673. The next prime is 18589857743. The reversal of 18589857716 is 61775898581.

It is a super-2 number, since 2×18589857716² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1134875 + ... + 1151138.

It is an arithmetic number, because the mean of its divisors is an integer number (1440188820).

Almost surely, 2^18589857716 is an apocalyptic number.

It is an amenable number.

18589857716 is a deficient number, since it is larger than the sum of its proper divisors (15974673964).

18589857716 is a wasteful number, since it uses less digits than its factorization.

18589857716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286143 (or 2286141 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 65.

The spelling of 18589857716 in words is "eighteen billion, five hundred eighty-nine million, eight hundred fifty-seven thousand, seven hundred sixteen".