18930633875 has 8 divisors (see below), whose sum is σ = 23625431232. Its totient is φ = 15144507000.

The previous prime is 18930633871. The next prime is 18930633889. The reversal of 18930633875 is 57833603981.

It is not a de Polignac number, because 18930633875 - 2² = 18930633871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18930633871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75722411 + ... + 75722660.

It is an arithmetic number, because the mean of its divisors is an integer number (2953178904).

Almost surely, 2^18930633875 is an apocalyptic number.

18930633875 is a deficient number, since it is larger than the sum of its proper divisors (4694797357).

18930633875 is an equidigital number, since it uses as much as digits as its factorization.

18930633875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151445086 (or 151445076 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 18930633875 in words is "eighteen billion, nine hundred thirty million, six hundred thirty-three thousand, eight hundred seventy-five".