18603053728 has 48 divisors (see below), whose sum is σ = 41928473664. Its totient is φ = 7959098880.

The previous prime is 18603053701. The next prime is 18603053731. The reversal of 18603053728 is 82735030681.

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, 60748 + ... + 202228.

It is an arithmetic number, because the mean of its divisors is an integer number (873509868).

Almost surely, 2^18603053728 is an apocalyptic number.

It is an amenable number.

18603053728 is an abundant number, since it is smaller than the sum of its proper divisors (23325419936).

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

18603053728 is a wasteful number, since it uses less digits than its factorization.

18603053728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142085 (or 142077 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 18603053728 in words is "eighteen billion, six hundred three million, fifty-three thousand, seven hundred twenty-eight".