18363909092 has 24 divisors (see below), whose sum is σ = 32423825280. Its totient is φ = 9100238400.

The previous prime is 18363909071. The next prime is 18363909121. The reversal of 18363909092 is 29090936381.

It is a self number, because there is not a number n which added to its sum of digits gives 18363909092.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230528 + ... + 299784.

It is an arithmetic number, because the mean of its divisors is an integer number (1350992720).

Almost surely, 2^18363909092 is an apocalyptic number.

It is an amenable number.

18363909092 is a deficient number, since it is larger than the sum of its proper divisors (14059916188).

18363909092 is a wasteful number, since it uses less digits than its factorization.

18363909092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69851 (or 69849 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 50.

The spelling of 18363909092 in words is "eighteen billion, three hundred sixty-three million, nine hundred nine thousand, ninety-two".