18540340024 has 16 divisors (see below), whose sum is σ = 34767925920. Its totient is φ = 9268893120.

The previous prime is 18540339991. The next prime is 18540340073. The reversal of 18540340024 is 42004304581.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96432 + ... + 215359.

It is an arithmetic number, because the mean of its divisors is an integer number (2172995370).

Almost surely, 2^18540340024 is an apocalyptic number.

It is an amenable number.

18540340024 is a deficient number, since it is larger than the sum of its proper divisors (16227585896).

18540340024 is a wasteful number, since it uses less digits than its factorization.

18540340024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319230 (or 319226 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The spelling of 18540340024 in words is "eighteen billion, five hundred forty million, three hundred forty thousand, twenty-four".