6780367081 has 2 divisors, whose sum is σ = 6780367082. Its totient is φ = 6780367080.

The previous prime is 6780367021. The next prime is 6780367109. The reversal of 6780367081 is 1807630876.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5905154025 + 875213056 = 76845^2 + 29584^2 .

It is a cyclic number.

It is not a de Polignac number, because 6780367081 - 2¹⁵ = 6780334313 is a prime.

It is a super-2 number, since 2×6780367081² = 91946755506216921122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6780367001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3390183540 + 3390183541.

It is an arithmetic number, because the mean of its divisors is an integer number (3390183541).

Almost surely, 2^6780367081 is an apocalyptic number.

It is an amenable number.

6780367081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6780367081 is an equidigital number, since it uses as much as digits as its factorization.

6780367081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 6780367081 is about 82342.9844066876. The cubic root of 6780367081 is about 1892.7114187181.

The spelling of 6780367081 in words is "six billion, seven hundred eighty million, three hundred sixty-seven thousand, eighty-one".