18907828530 has 64 divisors (see below), whose sum is σ = 48576844800. Its totient is φ = 4695744960.

The previous prime is 18907828517. The next prime is 18907828547. The reversal of 18907828530 is 3582870981.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247486 + ... + 314745.

It is an arithmetic number, because the mean of its divisors is an integer number (759013200).

Almost surely, 2^18907828530 is an apocalyptic number.

18907828530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18907828530 is an abundant number, since it is smaller than the sum of its proper divisors (29669016270).

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

18907828530 is a wasteful number, since it uses less digits than its factorization.

18907828530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562319.

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 18907828530 in words is "eighteen billion, nine hundred seven million, eight hundred twenty-eight thousand, five hundred thirty".