18454175945 has 8 divisors (see below), whose sum is σ = 22268727360. Its totient is φ = 14680863280.

The previous prime is 18454175939. The next prime is 18454175951. The reversal of 18454175945 is 54957145481.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18454175939) and next prime (18454175951).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18454175945 - 2²⁰ = 18453127369 is a prime.

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, 10308701 + ... + 10310490.

It is an arithmetic number, because the mean of its divisors is an integer number (2783590920).

Almost surely, 2^18454175945 is an apocalyptic number.

It is an amenable number.

18454175945 is a deficient number, since it is larger than the sum of its proper divisors (3814551415).

18454175945 is a wasteful number, since it uses less digits than its factorization.

18454175945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20619375.

The product of its digits is 4032000, while the sum is 53.

The spelling of 18454175945 in words is "eighteen billion, four hundred fifty-four million, one hundred seventy-five thousand, nine hundred forty-five".