43327912897 has 2 divisors, whose sum is σ = 43327912898. Its totient is φ = 43327912896.

The previous prime is 43327912867. The next prime is 43327912913. The reversal of 43327912897 is 79821972334.

It is a happy number.

43327912897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29280685456 + 14047227441 = 171116^2 + 118521^2 .

It is a cyclic number.

It is not a de Polignac number, because 43327912897 - 2²⁷ = 43193695169 is a prime.

It is not a weakly prime, because it can be changed into another prime (43327912867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21663956448 + 21663956449.

It is an arithmetic number, because the mean of its divisors is an integer number (21663956449).

Almost surely, 2^43327912897 is an apocalyptic number.

It is an amenable number.

43327912897 is a deficient number, since it is larger than the sum of its proper divisors (1).

43327912897 is an equidigital number, since it uses as much as digits as its factorization.

43327912897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 55.

The spelling of 43327912897 in words is "forty-three billion, three hundred twenty-seven million, nine hundred twelve thousand, eight hundred ninety-seven".