18816858023 has 8 divisors (see below), whose sum is σ = 19138291200. Its totient is φ = 18495508408.

The previous prime is 18816857987. The next prime is 18816858059. The reversal of 18816858023 is 32085861881.

It is an interprime number because it is at equal distance from previous prime (18816857987) and next prime (18816858059).

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 18816858023 - 2¹⁰ = 18816856999 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 (18816858223) 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, 578840 + ... + 610482.

It is an arithmetic number, because the mean of its divisors is an integer number (2392286400).

Almost surely, 2^18816858023 is an apocalyptic number.

18816858023 is a deficient number, since it is larger than the sum of its proper divisors (321433177).

18816858023 is a wasteful number, since it uses less digits than its factorization.

18816858023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41781.

The product of its (nonzero) digits is 737280, while the sum is 50.

The spelling of 18816858023 in words is "eighteen billion, eight hundred sixteen million, eight hundred fifty-eight thousand, twenty-three".