13287433693 has 2 divisors, whose sum is σ = 13287433694. Its totient is φ = 13287433692.

The previous prime is 13287433681. The next prime is 13287433777. The reversal of 13287433693 is 39633478231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11791136569 + 1496297124 = 108587^2 + 38682^2 .

It is a cyclic number.

It is not a de Polignac number, because 13287433693 - 2³³ = 4697499101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13287433633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6643716846 + 6643716847.

It is an arithmetic number, because the mean of its divisors is an integer number (6643716847).

Almost surely, 2^13287433693 is an apocalyptic number.

It is an amenable number.

13287433693 is a deficient number, since it is larger than the sum of its proper divisors (1).

13287433693 is an equidigital number, since it uses as much as digits as its factorization.

13287433693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 49.

The spelling of 13287433693 in words is "thirteen billion, two hundred eighty-seven million, four hundred thirty-three thousand, six hundred ninety-three".