6787385927761 has 2 divisors, whose sum is σ = 6787385927762. Its totient is φ = 6787385927760.

The previous prime is 6787385927723. The next prime is 6787385927797. The reversal of 6787385927761 is 1677295837876.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4809512163600 + 1977873764161 = 2193060^2 + 1406369^2 .

It is a cyclic number.

It is not a de Polignac number, because 6787385927761 - 2⁹ = 6787385927249 is a prime.

It is not a weakly prime, because it can be changed into another prime (6787385922761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3393692963880 + 3393692963881.

It is an arithmetic number, because the mean of its divisors is an integer number (3393692963881).

Almost surely, 2^{6787385927761} is an apocalyptic number.

It is an amenable number.

6787385927761 is a deficient number, since it is larger than the sum of its proper divisors (1).

6787385927761 is an equidigital number, since it uses as much as digits as its factorization.

6787385927761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1493614080, while the sum is 76.

The spelling of 6787385927761 in words is "six trillion, seven hundred eighty-seven billion, three hundred eighty-five million, nine hundred twenty-seven thousand, seven hundred sixty-one".