18334258418506 has 4 divisors (see below), whose sum is σ = 27501387627762. Its totient is φ = 9167129209252.

The previous prime is 18334258418501. The next prime is 18334258418513. The reversal of 18334258418506 is 60581485243381.

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

It can be written as a sum of positive squares in only one way, i.e., 11907572040225 + 6426686378281 = 3450735^2 + 2535091^2 .

It is a super-2 number, since 2×18334258418506² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (18334258418501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4583564604625 + ... + 4583564604628.

Almost surely, 2^{18334258418506} is an apocalyptic number.

18334258418506 is a deficient number, since it is larger than the sum of its proper divisors (9167129209256).

18334258418506 is an equidigital number, since it uses as much as digits as its factorization.

18334258418506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9167129209255.

The product of its (nonzero) digits is 22118400, while the sum is 58.

The spelling of 18334258418506 in words is "eighteen trillion, three hundred thirty-four billion, two hundred fifty-eight million, four hundred eighteen thousand, five hundred six".