18625473823 has 8 divisors (see below), whose sum is σ = 20663084160. Its totient is φ = 16645261080.

The previous prime is 18625473803. The next prime is 18625473871. The reversal of 18625473823 is 32837452681.

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

It is a cyclic number.

It is not a de Polignac number, because 18625473823 - 2³³ = 10035539231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18625473803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14348715 + ... + 14350012.

It is an arithmetic number, because the mean of its divisors is an integer number (2582885520).

Almost surely, 2^18625473823 is an apocalyptic number.

18625473823 is a deficient number, since it is larger than the sum of its proper divisors (2037610337).

18625473823 is a wasteful number, since it uses less digits than its factorization.

18625473823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28698797.

The product of its digits is 1935360, while the sum is 49.

The spelling of 18625473823 in words is "eighteen billion, six hundred twenty-five million, four hundred seventy-three thousand, eight hundred twenty-three".