18324142741 has 4 divisors (see below), whose sum is σ = 18417158892. Its totient is φ = 18231126592.

The previous prime is 18324142729. The next prime is 18324142747. The reversal of 18324142741 is 14724142381.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10055877841 + 8268264900 = 100279^2 + 90930^2 .

It is a cyclic number.

It is not a de Polignac number, because 18324142741 - 2⁹ = 18324142229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18324142741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18324142747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46507780 + ... + 46508173.

It is an arithmetic number, because the mean of its divisors is an integer number (4604289723).

Almost surely, 2^18324142741 is an apocalyptic number.

It is an amenable number.

18324142741 is a deficient number, since it is larger than the sum of its proper divisors (93016151).

18324142741 is an equidigital number, since it uses as much as digits as its factorization.

18324142741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93016150.

The product of its digits is 43008, while the sum is 37.

The spelling of 18324142741 in words is "eighteen billion, three hundred twenty-four million, one hundred forty-two thousand, seven hundred forty-one".