18903465475 has 12 divisors (see below), whose sum is σ = 23443362376. Its totient is φ = 15120794880.

The previous prime is 18903465461. The next prime is 18903465487. The reversal of 18903465475 is 57456430981.

It is not a de Polignac number, because 18903465475 - 2²⁷ = 18769247747 is a prime.

It is a Duffinian 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, 163564 + ... + 254086.

Almost surely, 2^18903465475 is an apocalyptic number.

18903465475 is a deficient number, since it is larger than the sum of its proper divisors (4539896901).

18903465475 is an equidigital number, since it uses as much as digits as its factorization.

18903465475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98886 (or 98881 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 18903465475 in words is "eighteen billion, nine hundred three million, four hundred sixty-five thousand, four hundred seventy-five".