6749239933 has 2 divisors, whose sum is σ = 6749239934. Its totient is φ = 6749239932.

The previous prime is 6749239891. The next prime is 6749239951. The reversal of 6749239933 is 3399329476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5916224889 + 833015044 = 76917^2 + 28862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6749239933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6749239993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3374619966 + 3374619967.

It is an arithmetic number, because the mean of its divisors is an integer number (3374619967).

Almost surely, 2^6749239933 is an apocalyptic number.

It is an amenable number.

6749239933 is a deficient number, since it is larger than the sum of its proper divisors (1).

6749239933 is an equidigital number, since it uses as much as digits as its factorization.

6749239933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6613488, while the sum is 55.

The square root of 6749239933 is about 82153.7578750966. The cubic root of 6749239933 is about 1889.8106370380.

The spelling of 6749239933 in words is "six billion, seven hundred forty-nine million, two hundred thirty-nine thousand, nine hundred thirty-three".