13653235019 has 2 divisors, whose sum is σ = 13653235020. Its totient is φ = 13653235018.

The previous prime is 13653234997. The next prime is 13653235049. The reversal of 13653235019 is 91053235631.

It is a weak prime.

It is an emirp because it is prime and its reverse (91053235631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13653235019 is a prime.

It is a super-2 number, since 2×13653235019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13653235049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6826617509 + 6826617510.

It is an arithmetic number, because the mean of its divisors is an integer number (6826617510).

Almost surely, 2^13653235019 is an apocalyptic number.

13653235019 is a deficient number, since it is larger than the sum of its proper divisors (1).

13653235019 is an equidigital number, since it uses as much as digits as its factorization.

13653235019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72900, while the sum is 38.

The spelling of 13653235019 in words is "thirteen billion, six hundred fifty-three million, two hundred thirty-five thousand, nineteen".