18412411229 has 2 divisors, whose sum is σ = 18412411230. Its totient is φ = 18412411228.

The previous prime is 18412411207. The next prime is 18412411243. The reversal of 18412411229 is 92211421481.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10235368900 + 8177042329 = 101170^2 + 90427^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18412411229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18412410229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9206205614 + 9206205615.

It is an arithmetic number, because the mean of its divisors is an integer number (9206205615).

Almost surely, 2^18412411229 is an apocalyptic number.

It is an amenable number.

18412411229 is a deficient number, since it is larger than the sum of its proper divisors (1).

18412411229 is an equidigital number, since it uses as much as digits as its factorization.

18412411229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 35.

The spelling of 18412411229 in words is "eighteen billion, four hundred twelve million, four hundred eleven thousand, two hundred twenty-nine".