18528018700 has 36 divisors (see below), whose sum is σ = 40212018280. Its totient is φ = 7410061440.

The previous prime is 18528018689. The next prime is 18528018709. The reversal of 18528018700 is 781082581.

It is not an unprimeable number, because it can be changed into a prime (18528018709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 976504 + ... + 995296.

Almost surely, 2^18528018700 is an apocalyptic number.

18528018700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18528018700 is an abundant number, since it is smaller than the sum of its proper divisors (21683999580).

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

18528018700 is a wasteful number, since it uses less digits than its factorization.

18528018700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28666 (or 28659 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 40.

The spelling of 18528018700 in words is "eighteen billion, five hundred twenty-eight million, eighteen thousand, seven hundred".