18873236068 has 12 divisors (see below), whose sum is σ = 33368660332. Its totient is φ = 9339333120.

The previous prime is 18873236051. The next prime is 18873236087. The reversal of 18873236068 is 86063237881.

It can be written as a sum of positive squares in 2 ways, for example, as 4962920704 + 13910315364 = 70448^2 + 117942^2 .

It is a super-2 number, since 2×18873236068² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24320793 + ... + 24321568.

Almost surely, 2^18873236068 is an apocalyptic number.

It is an amenable number.

18873236068 is a deficient number, since it is larger than the sum of its proper divisors (14495424264).

18873236068 is a wasteful number, since it uses less digits than its factorization.

18873236068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48642462 (or 48642460 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 18873236068 in words is "eighteen billion, eight hundred seventy-three million, two hundred thirty-six thousand, sixty-eight".