18662883229 has 2 divisors, whose sum is σ = 18662883230. Its totient is φ = 18662883228.

The previous prime is 18662883149. The next prime is 18662883241. The reversal of 18662883229 is 92238826681.

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., 12049452900 + 6613430329 = 109770^2 + 81323^2 .

It is a cyclic number.

It is not a de Polignac number, because 18662883229 - 2²¹ = 18660786077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18662883229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18662823229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9331441614 + 9331441615.

It is an arithmetic number, because the mean of its divisors is an integer number (9331441615).

Almost surely, 2^18662883229 is an apocalyptic number.

It is an amenable number.

18662883229 is a deficient number, since it is larger than the sum of its proper divisors (1).

18662883229 is an equidigital number, since it uses as much as digits as its factorization.

18662883229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3981312, while the sum is 55.

The spelling of 18662883229 in words is "eighteen billion, six hundred sixty-two million, eight hundred eighty-three thousand, two hundred twenty-nine".