13694452789 has 2 divisors, whose sum is σ = 13694452790. Its totient is φ = 13694452788.

The previous prime is 13694452769. The next prime is 13694452843. The reversal of 13694452789 is 98725449631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13350647025 + 343805764 = 115545^2 + 18542^2 .

It is a cyclic number.

It is not a de Polignac number, because 13694452789 - 2⁵ = 13694452757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13694452769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6847226394 + 6847226395.

It is an arithmetic number, because the mean of its divisors is an integer number (6847226395).

Almost surely, 2^13694452789 is an apocalyptic number.

It is an amenable number.

13694452789 is a deficient number, since it is larger than the sum of its proper divisors (1).

13694452789 is an equidigital number, since it uses as much as digits as its factorization.

13694452789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13063680, while the sum is 58.

The spelling of 13694452789 in words is "thirteen billion, six hundred ninety-four million, four hundred fifty-two thousand, seven hundred eighty-nine".