18455000123 has 16 divisors (see below), whose sum is σ = 21186745344. Its totient is φ = 15747164160.

The previous prime is 18455000099. The next prime is 18455000141. The reversal of 18455000123 is 32100055481.

It is not a de Polignac number, because 18455000123 - 2⁶ = 18455000059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18455000173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5415086 + ... + 5418492.

It is an arithmetic number, because the mean of its divisors is an integer number (1324171584).

Almost surely, 2^18455000123 is an apocalyptic number.

18455000123 is a deficient number, since it is larger than the sum of its proper divisors (2731745221).

18455000123 is a wasteful number, since it uses less digits than its factorization.

18455000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6682.

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 18455000123 in words is "eighteen billion, four hundred fifty-five million, one hundred twenty-three", and thus it is an aban number.