6776263913 has 2 divisors, whose sum is σ = 6776263914. Its totient is φ = 6776263912.

The previous prime is 6776263877. The next prime is 6776263957. The reversal of 6776263913 is 3193626776.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4375557904 + 2400706009 = 66148^2 + 48997^2 .

It is a cyclic number.

It is not a de Polignac number, because 6776263913 - 2²² = 6772069609 is a prime.

It is not a weakly prime, because it can be changed into another prime (6776260913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3388131956 + 3388131957.

It is an arithmetic number, because the mean of its divisors is an integer number (3388131957).

Almost surely, 2^6776263913 is an apocalyptic number.

It is an amenable number.

6776263913 is a deficient number, since it is larger than the sum of its proper divisors (1).

6776263913 is an equidigital number, since it uses as much as digits as its factorization.

6776263913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1714608, while the sum is 50.

The square root of 6776263913 is about 82318.0655324213. The cubic root of 6776263913 is about 1892.3295475536.

The spelling of 6776263913 in words is "six billion, seven hundred seventy-six million, two hundred sixty-three thousand, nine hundred thirteen".