18453805068 has 24 divisors (see below), whose sum is σ = 43476928768. Its totient is φ = 6091546896.

The previous prime is 18453805021. The next prime is 18453805079. The reversal of 18453805068 is 86050835481.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7463896 + ... + 7466367.

Almost surely, 2^18453805068 is an apocalyptic number.

It is an amenable number.

18453805068 is an abundant number, since it is smaller than the sum of its proper divisors (25023123700).

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

18453805068 is a wasteful number, since it uses less digits than its factorization.

18453805068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14930373 (or 14930371 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 48.

The spelling of 18453805068 in words is "eighteen billion, four hundred fifty-three million, eight hundred five thousand, sixty-eight".