18703444992 has 44 divisors (see below), whose sum is σ = 49851508056. Its totient is φ = 6234480640.

The previous prime is 18703444987. The next prime is 18703444997. The reversal of 18703444992 is 29944430781.

It is an interprime number because it is at equal distance from previous prime (18703444987) and next prime (18703444997).

It is not an unprimeable number, because it can be changed into a prime (18703444997) 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, 3041109 + ... + 3047252.

Almost surely, 2^18703444992 is an apocalyptic number.

18703444992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18703444992 is an abundant number, since it is smaller than the sum of its proper divisors (31148063064).

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

18703444992 is an equidigital number, since it uses as much as digits as its factorization.

18703444992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6088384 (or 6088366 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 18703444992 in words is "eighteen billion, seven hundred three million, four hundred forty-four thousand, nine hundred ninety-two".