7238513749 has 2 divisors, whose sum is σ = 7238513750. Its totient is φ = 7238513748.

The previous prime is 7238513713. The next prime is 7238513761. The reversal of 7238513749 is 9473158327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5272212100 + 1966301649 = 72610^2 + 44343^2 .

It is a cyclic number.

It is not a de Polignac number, because 7238513749 - 2¹³ = 7238505557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7238514749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3619256874 + 3619256875.

It is an arithmetic number, because the mean of its divisors is an integer number (3619256875).

Almost surely, 2^7238513749 is an apocalyptic number.

It is an amenable number.

7238513749 is a deficient number, since it is larger than the sum of its proper divisors (1).

7238513749 is an equidigital number, since it uses as much as digits as its factorization.

7238513749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 49.

The square root of 7238513749 is about 85079.4555048397. The cubic root of 7238513749 is about 1934.4156683176.

The spelling of 7238513749 in words is "seven billion, two hundred thirty-eight million, five hundred thirteen thousand, seven hundred forty-nine".