13334431697 has 2 divisors, whose sum is σ = 13334431698. Its totient is φ = 13334431696.

The previous prime is 13334431673. The next prime is 13334431741. The reversal of 13334431697 is 79613443331.

It is a happy number.

It is an a-pointer prime, because the next prime (13334431741) can be obtained adding 13334431697 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10858473616 + 2475958081 = 104204^2 + 49759^2 .

It is a cyclic number.

It is not a de Polignac number, because 13334431697 - 2⁸ = 13334431441 is a prime.

It is not a weakly prime, because it can be changed into another prime (13334431637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6667215848 + 6667215849.

It is an arithmetic number, because the mean of its divisors is an integer number (6667215849).

Almost surely, 2^13334431697 is an apocalyptic number.

It is an amenable number.

13334431697 is a deficient number, since it is larger than the sum of its proper divisors (1).

13334431697 is an equidigital number, since it uses as much as digits as its factorization.

13334431697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 44.

The spelling of 13334431697 in words is "thirteen billion, three hundred thirty-four million, four hundred thirty-one thousand, six hundred ninety-seven".