8340778759 has 2 divisors, whose sum is σ = 8340778760. Its totient is φ = 8340778758.

The previous prime is 8340778639. The next prime is 8340778781. The reversal of 8340778759 is 9578770438.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8340778759 - 2¹¹ = 8340776711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8340773759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4170389379 + 4170389380.

It is an arithmetic number, because the mean of its divisors is an integer number (4170389380).

Almost surely, 2^8340778759 is an apocalyptic number.

8340778759 is a deficient number, since it is larger than the sum of its proper divisors (1).

8340778759 is an equidigital number, since it uses as much as digits as its factorization.

8340778759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11854080, while the sum is 58.

The square root of 8340778759 is about 91327.8640886778. The cubic root of 8340778759 is about 2028.0042798980.

The spelling of 8340778759 in words is "eight billion, three hundred forty million, seven hundred seventy-eight thousand, seven hundred fifty-nine".