18579757243 has 8 divisors (see below), whose sum is σ = 18642027312. Its totient is φ = 18517538016.

The previous prime is 18579757139. The next prime is 18579757247. The reversal of 18579757243 is 34275797581.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18579757243 is a prime.

It is a super-2 number, since 2×18579757243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18579757247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806521 + ... + 829237.

It is an arithmetic number, because the mean of its divisors is an integer number (2330253414).

Almost surely, 2^18579757243 is an apocalyptic number.

18579757243 is a deficient number, since it is larger than the sum of its proper divisors (62270069).

18579757243 is a wasteful number, since it uses less digits than its factorization.

18579757243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25421.

The product of its digits is 14817600, while the sum is 58.

The spelling of 18579757243 in words is "eighteen billion, five hundred seventy-nine million, seven hundred fifty-seven thousand, two hundred forty-three".