7749668713 has 2 divisors, whose sum is σ = 7749668714. Its totient is φ = 7749668712.

The previous prime is 7749668683. The next prime is 7749668791. The reversal of 7749668713 is 3178669477.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7739248729 + 10419984 = 87973^2 + 3228^2 .

It is an emirp because it is prime and its reverse (3178669477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7749668713 - 2¹³ = 7749660521 is a prime.

It is a super-2 number, since 2×7749668713² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7749668813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3874834356 + 3874834357.

It is an arithmetic number, because the mean of its divisors is an integer number (3874834357).

Almost surely, 2^7749668713 is an apocalyptic number.

It is an amenable number.

7749668713 is a deficient number, since it is larger than the sum of its proper divisors (1).

7749668713 is an equidigital number, since it uses as much as digits as its factorization.

7749668713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10668672, while the sum is 58.

The square root of 7749668713 is about 88032.2027044649. The cubic root of 7749668713 is about 1978.9176066311.

The spelling of 7749668713 in words is "seven billion, seven hundred forty-nine million, six hundred sixty-eight thousand, seven hundred thirteen".