18324531850 has 24 divisors (see below), whose sum is σ = 34105361760. Its totient is φ = 7325139120.

The previous prime is 18324531809. The next prime is 18324531851. The reversal of 18324531850 is 5813542381.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (18324531851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37102 + ... + 195001.

It is an arithmetic number, because the mean of its divisors is an integer number (1421056740).

Almost surely, 2^18324531850 is an apocalyptic number.

18324531850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18324531850 is a deficient number, since it is larger than the sum of its proper divisors (15780829910).

18324531850 is a wasteful number, since it uses less digits than its factorization.

18324531850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233694 (or 233689 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 18324531850 in words is "eighteen billion, three hundred twenty-four million, five hundred thirty-one thousand, eight hundred fifty".