18926995836 has 48 divisors (see below), whose sum is σ = 51836105216. Its totient is φ = 5261557824.

The previous prime is 18926995831. The next prime is 18926995859. The reversal of 18926995836 is 63859962981.

It is a super-2 number, since 2×18926995836² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18926995831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3041776 + ... + 3047991.

Almost surely, 2^18926995836 is an apocalyptic number.

It is an amenable number.

18926995836 is an abundant number, since it is smaller than the sum of its proper divisors (32909109380).

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

18926995836 is a wasteful number, since it uses less digits than its factorization.

18926995836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6089818 (or 6089816 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 66.

The spelling of 18926995836 in words is "eighteen billion, nine hundred twenty-six million, nine hundred ninety-five thousand, eight hundred thirty-six".