7247667643 has 2 divisors, whose sum is σ = 7247667644. Its totient is φ = 7247667642.

The previous prime is 7247667619. The next prime is 7247667659. The reversal of 7247667643 is 3467667427.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7247667643 is a prime.

It is not a weakly prime, because it can be changed into another prime (7247667043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3623833821 + 3623833822.

It is an arithmetic number, because the mean of its divisors is an integer number (3623833822).

Almost surely, 2^7247667643 is an apocalyptic number.

7247667643 is a deficient number, since it is larger than the sum of its proper divisors (1).

7247667643 is an equidigital number, since it uses as much as digits as its factorization.

7247667643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7112448, while the sum is 52.

The square root of 7247667643 is about 85133.2346560378. The cubic root of 7247667643 is about 1935.2307517036.

The spelling of 7247667643 in words is "seven billion, two hundred forty-seven million, six hundred sixty-seven thousand, six hundred forty-three".