18123500054 has 32 divisors (see below), whose sum is σ = 30627072000. Its totient is φ = 7968628800.

The previous prime is 18123500041. The next prime is 18123500069. The reversal of 18123500054 is 45000532181.

It is a super-2 number, since 2×18123500054² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2009447 + ... + 2018445.

It is an arithmetic number, because the mean of its divisors is an integer number (957096000).

Almost surely, 2^18123500054 is an apocalyptic number.

18123500054 is a deficient number, since it is larger than the sum of its proper divisors (12503571946).

18123500054 is a wasteful number, since it uses less digits than its factorization.

18123500054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11996.

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

The spelling of 18123500054 in words is "eighteen billion, one hundred twenty-three million, five hundred thousand, fifty-four".