6776973563 has 2 divisors, whose sum is σ = 6776973564. Its totient is φ = 6776973562.

The previous prime is 6776973527. The next prime is 6776973587. The reversal of 6776973563 is 3653796776.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6776973563 - 2²⁴ = 6760196347 is a prime.

It is not a weakly prime, because it can be changed into another prime (6776973503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3388486781 + 3388486782.

It is an arithmetic number, because the mean of its divisors is an integer number (3388486782).

Almost surely, 2^6776973563 is an apocalyptic number.

6776973563 is a deficient number, since it is larger than the sum of its proper divisors (1).

6776973563 is an equidigital number, since it uses as much as digits as its factorization.

6776973563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30005640, while the sum is 59.

The square root of 6776973563 is about 82322.3758342773. The cubic root of 6776973563 is about 1892.3956038547.

The spelling of 6776973563 in words is "six billion, seven hundred seventy-six million, nine hundred seventy-three thousand, five hundred sixty-three".