18392669993 has 16 divisors (see below), whose sum is σ = 18983462400. Its totient is φ = 17807049216.

The previous prime is 18392669963. The next prime is 18392670007. The reversal of 18392669993 is 39996629381.

It is a cyclic number.

It is not a de Polignac number, because 18392669993 - 2⁶ = 18392669929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18392669963) 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, 7665608 + ... + 7668006.

It is an arithmetic number, because the mean of its divisors is an integer number (1186466400).

Almost surely, 2^18392669993 is an apocalyptic number.

It is an amenable number.

18392669993 is a deficient number, since it is larger than the sum of its proper divisors (590792407).

18392669993 is a wasteful number, since it uses less digits than its factorization.

18392669993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3376.

The product of its digits is 34012224, while the sum is 65.

The spelling of 18392669993 in words is "eighteen billion, three hundred ninety-two million, six hundred sixty-nine thousand, nine hundred ninety-three".