3967665896287 has 2 divisors, whose sum is σ = 3967665896288. Its totient is φ = 3967665896286.

The previous prime is 3967665896203. The next prime is 3967665896297. The reversal of 3967665896287 is 7826985667693.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3967665896287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3967665896287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3967665896297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1983832948143 + 1983832948144.

It is an arithmetic number, because the mean of its divisors is an integer number (1983832948144).

Almost surely, 2^{3967665896287} is an apocalyptic number.

3967665896287 is a deficient number, since it is larger than the sum of its proper divisors (1).

3967665896287 is an equidigital number, since it uses as much as digits as its factorization.

3967665896287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9876142080, while the sum is 82.

The spelling of 3967665896287 in words is "three trillion, nine hundred sixty-seven billion, six hundred sixty-five million, eight hundred ninety-six thousand, two hundred eighty-seven".