6682693957 has 2 divisors, whose sum is σ = 6682693958. Its totient is φ = 6682693956.

The previous prime is 6682693943. The next prime is 6682694047. The reversal of 6682693957 is 7593962866.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4918777956 + 1763916001 = 70134^2 + 41999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6682693957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6682693895 and 6682693904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6682693937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3341346978 + 3341346979.

It is an arithmetic number, because the mean of its divisors is an integer number (3341346979).

Almost surely, 2^6682693957 is an apocalyptic number.

It is an amenable number.

6682693957 is a deficient number, since it is larger than the sum of its proper divisors (1).

6682693957 is an equidigital number, since it uses as much as digits as its factorization.

6682693957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29393280, while the sum is 61.

The square root of 6682693957 is about 81747.7458832964. The cubic root of 6682693957 is about 1883.5790765000.

The spelling of 6682693957 in words is "six billion, six hundred eighty-two million, six hundred ninety-three thousand, nine hundred fifty-seven".