6745399597 has 2 divisors, whose sum is σ = 6745399598. Its totient is φ = 6745399596.

The previous prime is 6745399547. The next prime is 6745399603. The reversal of 6745399597 is 7959935476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3731499396 + 3013900201 = 61086^2 + 54899^2 .

It is a cyclic number.

It is not a de Polignac number, because 6745399597 - 2²³ = 6737010989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6745399537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3372699798 + 3372699799.

It is an arithmetic number, because the mean of its divisors is an integer number (3372699799).

Almost surely, 2^6745399597 is an apocalyptic number.

It is an amenable number.

6745399597 is a deficient number, since it is larger than the sum of its proper divisors (1).

6745399597 is an equidigital number, since it uses as much as digits as its factorization.

6745399597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64297800, while the sum is 64.

The square root of 6745399597 is about 82130.3816927695. The cubic root of 6745399597 is about 1889.4521332240.

The spelling of 6745399597 in words is "six billion, seven hundred forty-five million, three hundred ninety-nine thousand, five hundred ninety-seven".