43364257297 has 2 divisors, whose sum is σ = 43364257298. Its totient is φ = 43364257296.

The previous prime is 43364257291. The next prime is 43364257357. The reversal of 43364257297 is 79275246334.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30908804481 + 12455452816 = 175809^2 + 111604^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43364257297 is a prime.

It is not a weakly prime, because it can be changed into another prime (43364257291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21682128648 + 21682128649.

It is an arithmetic number, because the mean of its divisors is an integer number (21682128649).

Almost surely, 2^43364257297 is an apocalyptic number.

It is an amenable number.

43364257297 is a deficient number, since it is larger than the sum of its proper divisors (1).

43364257297 is an equidigital number, since it uses as much as digits as its factorization.

43364257297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 52.

The spelling of 43364257297 in words is "forty-three billion, three hundred sixty-four million, two hundred fifty-seven thousand, two hundred ninety-seven".