7868057447 has 2 divisors, whose sum is σ = 7868057448. Its totient is φ = 7868057446.

The previous prime is 7868057443. The next prime is 7868057467. The reversal of 7868057447 is 7447508687.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7447508687) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7868057447 - 2² = 7868057443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7868057392 and 7868057401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7868057443) 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, 3934028723 + 3934028724.

It is an arithmetic number, because the mean of its divisors is an integer number (3934028724).

Almost surely, 2^7868057447 is an apocalyptic number.

7868057447 is a deficient number, since it is larger than the sum of its proper divisors (1).

7868057447 is an equidigital number, since it uses as much as digits as its factorization.

7868057447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10536960, while the sum is 56.

The square root of 7868057447 is about 88702.0712666846. The cubic root of 7868057447 is about 1988.9437798743.

The spelling of 7868057447 in words is "seven billion, eight hundred sixty-eight million, fifty-seven thousand, four hundred forty-seven".