18682172875 has 8 divisors (see below), whose sum is σ = 23315351904. Its totient is φ = 14945738200.

The previous prime is 18682172863. The next prime is 18682172953. The reversal of 18682172875 is 57827128681.

It is not a de Polignac number, because 18682172875 - 2²³ = 18673784267 is a prime.

It is a Duffinian number.

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, 74728567 + ... + 74728816.

It is an arithmetic number, because the mean of its divisors is an integer number (2914418988).

Almost surely, 2^18682172875 is an apocalyptic number.

18682172875 is a deficient number, since it is larger than the sum of its proper divisors (4633179029).

18682172875 is an equidigital number, since it uses as much as digits as its factorization.

18682172875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149457398 (or 149457388 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 55.

The spelling of 18682172875 in words is "eighteen billion, six hundred eighty-two million, one hundred seventy-two thousand, eight hundred seventy-five".