7278233713 has 2 divisors, whose sum is σ = 7278233714. Its totient is φ = 7278233712.

The previous prime is 7278233701. The next prime is 7278233737. The reversal of 7278233713 is 3173328727.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3671390464 + 3606843249 = 60592^2 + 60057^2 .

It is an emirp because it is prime and its reverse (3173328727) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7278233713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7278233713.

It is not a weakly prime, because it can be changed into another prime (7278233773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3639116856 + 3639116857.

It is an arithmetic number, because the mean of its divisors is an integer number (3639116857).

Almost surely, 2^7278233713 is an apocalyptic number.

It is an amenable number.

7278233713 is a deficient number, since it is larger than the sum of its proper divisors (1).

7278233713 is an equidigital number, since it uses as much as digits as its factorization.

7278233713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 43.

The square root of 7278233713 is about 85312.5648014406. The cubic root of 7278233713 is about 1937.9474618712.

The spelling of 7278233713 in words is "seven billion, two hundred seventy-eight million, two hundred thirty-three thousand, seven hundred thirteen".