16393686013 has 2 divisors, whose sum is σ = 16393686014. Its totient is φ = 16393686012.

The previous prime is 16393685981. The next prime is 16393686019. The reversal of 16393686013 is 31068639361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15287591449 + 1106094564 = 123643^2 + 33258^2 .

It is a cyclic number.

It is not a de Polignac number, because 16393686013 - 2⁵ = 16393685981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16393686019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8196843006 + 8196843007.

It is an arithmetic number, because the mean of its divisors is an integer number (8196843007).

Almost surely, 2^16393686013 is an apocalyptic number.

It is an amenable number.

16393686013 is a deficient number, since it is larger than the sum of its proper divisors (1).

16393686013 is an equidigital number, since it uses as much as digits as its factorization.

16393686013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 16393686013 in words is "sixteen billion, three hundred ninety-three million, six hundred eighty-six thousand, thirteen".