13600399643 has 2 divisors, whose sum is σ = 13600399644. Its totient is φ = 13600399642.

The previous prime is 13600399607. The next prime is 13600399649. The reversal of 13600399643 is 34699300631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13600399643 - 2¹⁰ = 13600398619 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 13600399594 and 13600399603.

It is not a weakly prime, because it can be changed into another prime (13600399649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6800199821 + 6800199822.

It is an arithmetic number, because the mean of its divisors is an integer number (6800199822).

Almost surely, 2^13600399643 is an apocalyptic number.

13600399643 is a deficient number, since it is larger than the sum of its proper divisors (1).

13600399643 is an equidigital number, since it uses as much as digits as its factorization.

13600399643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 314928, while the sum is 44.

The spelling of 13600399643 in words is "thirteen billion, six hundred million, three hundred ninety-nine thousand, six hundred forty-three".