18934342268 has 12 divisors (see below), whose sum is σ = 33141328752. Its totient is φ = 9465391200.

The previous prime is 18934342261. The next prime is 18934342283. The reversal of 18934342268 is 86224343981.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18934342261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420905 + ... + 463712.

It is an arithmetic number, because the mean of its divisors is an integer number (2761777396).

Almost surely, 2^18934342268 is an apocalyptic number.

It is an amenable number.

18934342268 is a deficient number, since it is larger than the sum of its proper divisors (14206986484).

18934342268 is a wasteful number, since it uses less digits than its factorization.

18934342268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889972 (or 889970 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 50.

The spelling of 18934342268 in words is "eighteen billion, nine hundred thirty-four million, three hundred forty-two thousand, two hundred sixty-eight".