18324541825 has 24 divisors (see below), whose sum is σ = 24453490680. Its totient is φ = 13571097600.

The previous prime is 18324541801. The next prime is 18324541861. The reversal of 18324541825 is 52814542381.

It can be written as a sum of positive squares in 12 ways, for example, as 2952509569 + 15372032256 = 54337^2 + 123984^2 .

It is not a de Polignac number, because 18324541825 - 2⁵ = 18324541793 is a prime.

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, 327490 + ... + 379339.

It is an arithmetic number, because the mean of its divisors is an integer number (1018895445).

Almost surely, 2^18324541825 is an apocalyptic number.

It is an amenable number.

18324541825 is a deficient number, since it is larger than the sum of its proper divisors (6128948855).

18324541825 is a wasteful number, since it uses less digits than its factorization.

18324541825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706917 (or 706912 counting only the distinct ones).

The product of its digits is 307200, while the sum is 43.

The spelling of 18324541825 in words is "eighteen billion, three hundred twenty-four million, five hundred forty-one thousand, eight hundred twenty-five".