18192909292 has 12 divisors (see below), whose sum is σ = 31842396376. Its totient is φ = 9095081760.

The previous prime is 18192909283. The next prime is 18192909299. The reversal of 18192909292 is 29290929181.

It is not an unprimeable number, because it can be changed into a prime (18192909299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313113 + ... + 366640.

Almost surely, 2^18192909292 is an apocalyptic number.

It is an amenable number.

18192909292 is a deficient number, since it is larger than the sum of its proper divisors (13649487084).

18192909292 is a wasteful number, since it uses less digits than its factorization.

18192909292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686448 (or 686446 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 52.

The spelling of 18192909292 in words is "eighteen billion, one hundred ninety-two million, nine hundred nine thousand, two hundred ninety-two".