18345428411 has 2 divisors, whose sum is σ = 18345428412. Its totient is φ = 18345428410.

The previous prime is 18345428371. The next prime is 18345428441. The reversal of 18345428411 is 11482454381.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18345428411 is a prime.

It is not a weakly prime, because it can be changed into another prime (18345428441) 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, 9172714205 + 9172714206.

It is an arithmetic number, because the mean of its divisors is an integer number (9172714206).

Almost surely, 2^18345428411 is an apocalyptic number.

18345428411 is a deficient number, since it is larger than the sum of its proper divisors (1).

18345428411 is an equidigital number, since it uses as much as digits as its factorization.

18345428411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122880, while the sum is 41.

The spelling of 18345428411 in words is "eighteen billion, three hundred forty-five million, four hundred twenty-eight thousand, four hundred eleven".