56840757329 has 2 divisors, whose sum is σ = 56840757330. Its totient is φ = 56840757328.

The previous prime is 56840757319. The next prime is 56840757349. The reversal of 56840757329 is 92375704865.

56840757329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33804499600 + 23036257729 = 183860^2 + 151777^2 .

It is a cyclic number.

It is not a de Polignac number, because 56840757329 - 2⁴ = 56840757313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (56840757319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28420378664 + 28420378665.

It is an arithmetic number, because the mean of its divisors is an integer number (28420378665).

Almost surely, 2^56840757329 is an apocalyptic number.

It is an amenable number.

56840757329 is a deficient number, since it is larger than the sum of its proper divisors (1).

56840757329 is an equidigital number, since it uses as much as digits as its factorization.

56840757329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12700800, while the sum is 56.

The spelling of 56840757329 in words is "fifty-six billion, eight hundred forty million, seven hundred fifty-seven thousand, three hundred twenty-nine".