18375954519132 has 576 divisors, whose sum is σ = 58239264384000. Its totient is φ = 4902327069696.

The previous prime is 18375954519121. The next prime is 18375954519137. The reversal of 18375954519132 is 23191545957381.

It is a happy number.

18375954519132 is a `hidden beast` number, since 1 + 8 + 3 + 7 + 5 + 95 + 451 + 91 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 18375954519132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18375954519137) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5192412619 + ... + 5192416157.

It is an arithmetic number, because the mean of its divisors is an integer number (101109834000).

Almost surely, 2^{18375954519132} is an apocalyptic number.

18375954519132 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 18375954519132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29119632192000).

18375954519132 is an abundant number, since it is smaller than the sum of its proper divisors (39863309864868).

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

18375954519132 is a wasteful number, since it uses less digits than its factorization.

18375954519132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835 (or 3790 counting only the distinct ones).

The product of its digits is 40824000, while the sum is 63.

The spelling of 18375954519132 in words is "eighteen trillion, three hundred seventy-five billion, nine hundred fifty-four million, five hundred nineteen thousand, one hundred thirty-two".