18243752718 has 8 divisors (see below), whose sum is σ = 36487505448. Its totient is φ = 6081250904.

The previous prime is 18243752711. The next prime is 18243752729. The reversal of 18243752718 is 81725734281.

It is a sphenic number, since it is the product of 3 distinct primes.

18243752718 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18243752711) 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, 1520312721 + ... + 1520312732.

It is an arithmetic number, because the mean of its divisors is an integer number (4560938181).

Almost surely, 2^18243752718 is an apocalyptic number.

18243752718 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18243752718 is a wasteful number, since it uses less digits than its factorization.

18243752718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040625458.

The product of its digits is 752640, while the sum is 48.

The spelling of 18243752718 in words is "eighteen billion, two hundred forty-three million, seven hundred fifty-two thousand, seven hundred eighteen".