7397388749 has 2 divisors, whose sum is σ = 7397388750. Its totient is φ = 7397388748.

The previous prime is 7397388743. The next prime is 7397388751. The reversal of 7397388749 is 9478837937.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4392375625 + 3005013124 = 66275^2 + 54818^2 .

It is an emirp because it is prime and its reverse (9478837937) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7397388749 - 2³² = 3102421453 is a prime.

Together with 7397388751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7397388743) 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, 3698694374 + 3698694375.

It is an arithmetic number, because the mean of its divisors is an integer number (3698694375).

Almost surely, 2^7397388749 is an apocalyptic number.

It is an amenable number.

7397388749 is a deficient number, since it is larger than the sum of its proper divisors (1).

7397388749 is an equidigital number, since it uses as much as digits as its factorization.

7397388749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64012032, while the sum is 65.

The square root of 7397388749 is about 86008.0737431086. The cubic root of 7397388749 is about 1948.4659202469.

The spelling of 7397388749 in words is "seven billion, three hundred ninety-seven million, three hundred eighty-eight thousand, seven hundred forty-nine".