18123539076 has 30 divisors (see below), whose sum is σ = 47378511950. Its totient is φ = 6041179584.

The previous prime is 18123539069. The next prime is 18123539089. The reversal of 18123539076 is 67093532181.

It can be written as a sum of positive squares in only one way, i.e., 14871802500 + 3251736576 = 121950^2 + 57024^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 27968101 + ... + 27968748.

Almost surely, 2^18123539076 is an apocalyptic number.

It is an amenable number.

18123539076 is an abundant number, since it is smaller than the sum of its proper divisors (29254972874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18123539076 is a wasteful number, since it uses less digits than its factorization.

18123539076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55936865 (or 55936854 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 18123539076 in words is "eighteen billion, one hundred twenty-three million, five hundred thirty-nine thousand, seventy-six".