18425702329 has 2 divisors, whose sum is σ = 18425702330. Its totient is φ = 18425702328.

The previous prime is 18425702299. The next prime is 18425702341. The reversal of 18425702329 is 92320752481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13415893929 + 5009808400 = 115827^2 + 70780^2 .

It is a cyclic number.

It is not a de Polignac number, because 18425702329 - 2²⁵ = 18392147897 is a prime.

It is not a weakly prime, because it can be changed into another prime (18425702389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9212851164 + 9212851165.

It is an arithmetic number, because the mean of its divisors is an integer number (9212851165).

Almost surely, 2^18425702329 is an apocalyptic number.

It is an amenable number.

18425702329 is a deficient number, since it is larger than the sum of its proper divisors (1).

18425702329 is an equidigital number, since it uses as much as digits as its factorization.

18425702329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 18425702329 in words is "eighteen billion, four hundred twenty-five million, seven hundred two thousand, three hundred twenty-nine".