6805907477 has 2 divisors, whose sum is σ = 6805907478. Its totient is φ = 6805907476.

The previous prime is 6805907473. The next prime is 6805907501. The reversal of 6805907477 is 7747095086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4084615921 + 2721291556 = 63911^2 + 52166^2 .

It is a cyclic number.

It is not a de Polignac number, because 6805907477 - 2² = 6805907473 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6805907473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3402953738 + 3402953739.

It is an arithmetic number, because the mean of its divisors is an integer number (3402953739).

Almost surely, 2^6805907477 is an apocalyptic number.

It is an amenable number.

6805907477 is a deficient number, since it is larger than the sum of its proper divisors (1).

6805907477 is an equidigital number, since it uses as much as digits as its factorization.

6805907477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2963520, while the sum is 53.

The square root of 6805907477 is about 82497.9240769124. The cubic root of 6805907477 is about 1895.0849396281.

The spelling of 6805907477 in words is "six billion, eight hundred five million, nine hundred seven thousand, four hundred seventy-seven".