13636042019 has 2 divisors, whose sum is σ = 13636042020. Its totient is φ = 13636042018.

The previous prime is 13636042009. The next prime is 13636042067. The reversal of 13636042019 is 91024063631.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13636042019 - 2¹⁶ = 13635976483 is a prime.

It is a super-2 number, since 2×13636042019² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13636042019.

It is not a weakly prime, because it can be changed into another prime (13636042009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6818021009 + 6818021010.

It is an arithmetic number, because the mean of its divisors is an integer number (6818021010).

Almost surely, 2^13636042019 is an apocalyptic number.

13636042019 is a deficient number, since it is larger than the sum of its proper divisors (1).

13636042019 is an equidigital number, since it uses as much as digits as its factorization.

13636042019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 13636042019 in words is "thirteen billion, six hundred thirty-six million, forty-two thousand, nineteen".