18745883865252 has 144 divisors (see below), whose sum is σ = 50621066496000. Its totient is φ = 5835007088064.

The previous prime is 18745883865239. The next prime is 18745883865257. The reversal of 18745883865252 is 25256838854781.

18745883865252 is a `hidden beast` number, since 1 + 8 + 7 + 4 + 588 + 38 + 6 + 5 + 2 + 5 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (18745883865257) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71040703 + ... + 71304089.

It is an arithmetic number, because the mean of its divisors is an integer number (351535184000).

Almost surely, 2^{18745883865252} is an apocalyptic number.

18745883865252 is a gapful number since it is divisible by the number (12) 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 18745883865252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25310533248000).

18745883865252 is an abundant number, since it is smaller than the sum of its proper divisors (31875182630748).

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

18745883865252 is a wasteful number, since it uses less digits than its factorization.

18745883865252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265462 (or 265457 counting only the distinct ones).

The product of its digits is 1032192000, while the sum is 72.

The spelling of 18745883865252 in words is "eighteen trillion, seven hundred forty-five billion, eight hundred eighty-three million, eight hundred sixty-five thousand, two hundred fifty-two".