18018254458 has 8 divisors (see below), whose sum is σ = 28449875520. Its totient is φ = 8534962620.

The previous prime is 18018254447. The next prime is 18018254473. The reversal of 18018254458 is 85445281081.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 237082258 + ... + 237082333.

It is an arithmetic number, because the mean of its divisors is an integer number (3556234440).

Almost surely, 2^18018254458 is an apocalyptic number.

18018254458 is a deficient number, since it is larger than the sum of its proper divisors (10431621062).

18018254458 is a wasteful number, since it uses less digits than its factorization.

18018254458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474164612.

The product of its (nonzero) digits is 409600, while the sum is 46.

The spelling of 18018254458 in words is "eighteen billion, eighteen million, two hundred fifty-four thousand, four hundred fifty-eight".