7243666939 has 2 divisors, whose sum is σ = 7243666940. Its totient is φ = 7243666938.

The previous prime is 7243666921. The next prime is 7243666957. The reversal of 7243666939 is 9396663427.

It is a balanced prime because it is at equal distance from previous prime (7243666921) and next prime (7243666957).

It is a cyclic number.

It is not a de Polignac number, because 7243666939 - 2⁵ = 7243666907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7243666939.

It is not a weakly prime, because it can be changed into another prime (7243666919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3621833469 + 3621833470.

It is an arithmetic number, because the mean of its divisors is an integer number (3621833470).

Almost surely, 2^7243666939 is an apocalyptic number.

7243666939 is a deficient number, since it is larger than the sum of its proper divisors (1).

7243666939 is an equidigital number, since it uses as much as digits as its factorization.

7243666939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8817984, while the sum is 55.

The square root of 7243666939 is about 85109.7346899871. The cubic root of 7243666939 is about 1934.8746044663.

It can be divided in two parts, 724 and 3666939, that added together give a palindrome (3667663).

The spelling of 7243666939 in words is "seven billion, two hundred forty-three million, six hundred sixty-six thousand, nine hundred thirty-nine".