18630355143826 has 8 divisors (see below), whose sum is σ = 27945565827660. Its totient is φ = 9315166534608.

The previous prime is 18630355143821. The next prime is 18630355143863. The reversal of 18630355143826 is 62834155303681.

It can be written as a sum of positive squares in 2 ways, for example, as 16540448330025 + 2089906813801 = 4066995^2 + 1445651^2 .

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

It is not an unprimeable number, because it can be changed into a prime (18630355143821) 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 in 3 ways as a sum of consecutive naturals, for example, 3216681 + ... + 6899836.

Almost surely, 2^{18630355143826} is an apocalyptic number.

18630355143826 is a deficient number, since it is larger than the sum of its proper divisors (9315210683834).

18630355143826 is a wasteful number, since it uses less digits than its factorization.

18630355143826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11037308.

The product of its (nonzero) digits is 12441600, while the sum is 55.

The spelling of 18630355143826 in words is "eighteen trillion, six hundred thirty billion, three hundred fifty-five million, one hundred forty-three thousand, eight hundred twenty-six".