18245534100 has 72 divisors (see below), whose sum is σ = 52814015520. Its totient is φ = 4863300480.

The previous prime is 18245534081. The next prime is 18245534143. The reversal of 18245534100 is 143554281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 725334 + ... + 750066.

Almost surely, 2^18245534100 is an apocalyptic number.

18245534100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18245534100 is an abundant number, since it is smaller than the sum of its proper divisors (34568481420).

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

18245534100 is a wasteful number, since it uses less digits than its factorization.

18245534100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27209 (or 27202 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 18245534100 in words is "eighteen billion, two hundred forty-five million, five hundred thirty-four thousand, one hundred".