13668694783 has 2 divisors, whose sum is σ = 13668694784. Its totient is φ = 13668694782.

The previous prime is 13668694769. The next prime is 13668694799. The reversal of 13668694783 is 38749686631.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13668694783 is a prime.

It is a super-2 number, since 2×13668694783² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13668694733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6834347391 + 6834347392.

It is an arithmetic number, because the mean of its divisors is an integer number (6834347392).

Almost surely, 2^13668694783 is an apocalyptic number.

13668694783 is a deficient number, since it is larger than the sum of its proper divisors (1).

13668694783 is an equidigital number, since it uses as much as digits as its factorization.

13668694783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31352832, while the sum is 61.

The spelling of 13668694783 in words is "thirteen billion, six hundred sixty-eight million, six hundred ninety-four thousand, seven hundred eighty-three".