18622135424306 has 4 divisors (see below), whose sum is σ = 27933203136462. Its totient is φ = 9311067712152.

The previous prime is 18622135424293. The next prime is 18622135424327. The reversal of 18622135424306 is 60342453122681.

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., 17248530328225 + 1373605096081 = 4153135^2 + 1172009^2 .

It is a super-2 number, since 2×18622135424306² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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, 4655533856075 + ... + 4655533856078.

Almost surely, 2^{18622135424306} is an apocalyptic number.

18622135424306 is a deficient number, since it is larger than the sum of its proper divisors (9311067712156).

18622135424306 is an equidigital number, since it uses as much as digits as its factorization.

18622135424306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9311067712155.

The product of its (nonzero) digits is 1658880, while the sum is 47.

Adding to 18622135424306 its reverse (60342453122681), we get a palindrome (78964588546987).

The spelling of 18622135424306 in words is "eighteen trillion, six hundred twenty-two billion, one hundred thirty-five million, four hundred twenty-four thousand, three hundred six".