18498303975 has 12 divisors (see below), whose sum is σ = 30583862696. Its totient is φ = 9865762080.

The previous prime is 18498303961. The next prime is 18498304021. The reversal of 18498303975 is 57930389481.

It is not a de Polignac number, because 18498303975 - 2⁹ = 18498303463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123321952 + ... + 123322101.

Almost surely, 2^18498303975 is an apocalyptic number.

18498303975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18498303975 is a deficient number, since it is larger than the sum of its proper divisors (12085558721).

18498303975 is a wasteful number, since it uses less digits than its factorization.

18498303975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246644066 (or 246644061 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 18498303975 in words is "eighteen billion, four hundred ninety-eight million, three hundred three thousand, nine hundred seventy-five".