18674252500 has 60 divisors (see below), whose sum is σ = 40881088864. Its totient is φ = 7461612000.

The previous prime is 18674252473. The next prime is 18674252521. The reversal of 18674252500 is 525247681.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2653987 + ... + 2661013.

Almost surely, 2^18674252500 is an apocalyptic number.

18674252500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18674252500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20440544432).

18674252500 is an abundant number, since it is smaller than the sum of its proper divisors (22206836364).

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

18674252500 is a wasteful number, since it uses less digits than its factorization.

18674252500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8114 (or 8097 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 18674252500 in words is "eighteen billion, six hundred seventy-four million, two hundred fifty-two thousand, five hundred".