18376411213 has 2 divisors, whose sum is σ = 18376411214. Its totient is φ = 18376411212.

The previous prime is 18376411189. The next prime is 18376411217. The reversal of 18376411213 is 31211467381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12290383044 + 6086028169 = 110862^2 + 78013^2 .

It is an emirp because it is prime and its reverse (31211467381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18376411213 - 2⁵ = 18376411181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18376411217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9188205606 + 9188205607.

It is an arithmetic number, because the mean of its divisors is an integer number (9188205607).

Almost surely, 2^18376411213 is an apocalyptic number.

It is an amenable number.

18376411213 is a deficient number, since it is larger than the sum of its proper divisors (1).

18376411213 is an equidigital number, since it uses as much as digits as its factorization.

18376411213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

Adding to 18376411213 its reverse (31211467381), we get a palindrome (49587878594).

The spelling of 18376411213 in words is "eighteen billion, three hundred seventy-six million, four hundred eleven thousand, two hundred thirteen".