18190819092 has 24 divisors (see below), whose sum is σ = 42779462656. Its totient is φ = 6015860928.

The previous prime is 18190819061. The next prime is 18190819093. The reversal of 18190819092 is 29091809181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18190819093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5966593 + ... + 5969640.

Almost surely, 2^18190819092 is an apocalyptic number.

18190819092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18190819092 is an abundant number, since it is smaller than the sum of its proper divisors (24588643564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18190819092 is a wasteful number, since it uses less digits than its factorization.

18190819092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11936367 (or 11936365 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 48.

The spelling of 18190819092 in words is "eighteen billion, one hundred ninety million, eight hundred nineteen thousand, ninety-two".