13635085859 has 2 divisors, whose sum is σ = 13635085860. Its totient is φ = 13635085858.

The previous prime is 13635085831. The next prime is 13635085861. The reversal of 13635085859 is 95858053631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13635085859 - 2²⁰ = 13634037283 is a prime.

Together with 13635085861, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13635085859.

It is not a weakly prime, because it can be changed into another prime (13635085459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6817542929 + 6817542930.

It is an arithmetic number, because the mean of its divisors is an integer number (6817542930).

Almost surely, 2^13635085859 is an apocalyptic number.

13635085859 is a deficient number, since it is larger than the sum of its proper divisors (1).

13635085859 is an equidigital number, since it uses as much as digits as its factorization.

13635085859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888000, while the sum is 53.

The spelling of 13635085859 in words is "thirteen billion, six hundred thirty-five million, eighty-five thousand, eight hundred fifty-nine".