18435942359 has 2 divisors, whose sum is σ = 18435942360. Its totient is φ = 18435942358.

The previous prime is 18435942347. The next prime is 18435942367. The reversal of 18435942359 is 95324953481.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (95324953481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18435942359 - 2³² = 14140975063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18435942359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18435992359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9217971179 + 9217971180.

It is an arithmetic number, because the mean of its divisors is an integer number (9217971180).

Almost surely, 2^18435942359 is an apocalyptic number.

18435942359 is a deficient number, since it is larger than the sum of its proper divisors (1).

18435942359 is an equidigital number, since it uses as much as digits as its factorization.

18435942359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4665600, while the sum is 53.

The spelling of 18435942359 in words is "eighteen billion, four hundred thirty-five million, nine hundred forty-two thousand, three hundred fifty-nine".