6807378569 has 2 divisors, whose sum is σ = 6807378570. Its totient is φ = 6807378568.

The previous prime is 6807378533. The next prime is 6807378587. The reversal of 6807378569 is 9658737086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4541142544 + 2266236025 = 67388^2 + 47605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6807378569 is a prime.

It is a super-2 number, since 2×6807378569² = 92680805963360975522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6804378569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3403689284 + 3403689285.

It is an arithmetic number, because the mean of its divisors is an integer number (3403689285).

Almost surely, 2^6807378569 is an apocalyptic number.

It is an amenable number.

6807378569 is a deficient number, since it is larger than the sum of its proper divisors (1).

6807378569 is an equidigital number, since it uses as much as digits as its factorization.

6807378569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15240960, while the sum is 59.

The square root of 6807378569 is about 82506.8395286112. The cubic root of 6807378569 is about 1895.2214702065.

The spelling of 6807378569 in words is "six billion, eight hundred seven million, three hundred seventy-eight thousand, five hundred sixty-nine".