13432440997 has 2 divisors, whose sum is σ = 13432440998. Its totient is φ = 13432440996.

The previous prime is 13432440977. The next prime is 13432441003. The reversal of 13432440997 is 79904423431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11795914881 + 1636526116 = 108609^2 + 40454^2 .

It is a cyclic number.

It is not a de Polignac number, because 13432440997 - 2¹⁵ = 13432408229 is a prime.

It is a super-2 number, since 2×13432440997² (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 (13432440977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6716220498 + 6716220499.

It is an arithmetic number, because the mean of its divisors is an integer number (6716220499).

Almost surely, 2^13432440997 is an apocalyptic number.

It is an amenable number.

13432440997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13432440997 is an equidigital number, since it uses as much as digits as its factorization.

13432440997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 13432440997 in words is "thirteen billion, four hundred thirty-two million, four hundred forty thousand, nine hundred ninety-seven".