18109623754 has 16 divisors (see below), whose sum is σ = 27666864288. Its totient is φ = 8888725872.

The previous prime is 18109623743. The next prime is 18109623761. The reversal of 18109623754 is 45732690181.

It is a super-2 number, since 2×18109623754² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321372 + ... + 373495.

It is an arithmetic number, because the mean of its divisors is an integer number (1729179018).

It is a 2-persistent number, because it is pandigital, and so is 2⋅18109623754 = 36219247508, but 3⋅18109623754 = 54328871262 is not.

Almost surely, 2^18109623754 is an apocalyptic number.

18109623754 is a deficient number, since it is larger than the sum of its proper divisors (9557240534).

18109623754 is a wasteful number, since it uses less digits than its factorization.

18109623754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695109.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 18109623754 in words is "eighteen billion, one hundred nine million, six hundred twenty-three thousand, seven hundred fifty-four".