7738516948769 has 2 divisors, whose sum is σ = 7738516948770. Its totient is φ = 7738516948768.

The previous prime is 7738516948739. The next prime is 7738516948787. The reversal of 7738516948769 is 9678496158377.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5750346448144 + 1988170500625 = 2397988^2 + 1410025^2 .

It is a cyclic number.

It is not a de Polignac number, because 7738516948769 - 2²⁴ = 7738500171553 is a prime.

It is a super-2 number, since 2×7738516948769² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7738516948693 and 7738516948702.

It is not a weakly prime, because it can be changed into another prime (7738516948739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3869258474384 + 3869258474385.

It is an arithmetic number, because the mean of its divisors is an integer number (3869258474385).

Almost surely, 2^{7738516948769} is an apocalyptic number.

It is an amenable number.

7738516948769 is a deficient number, since it is larger than the sum of its proper divisors (1).

7738516948769 is an equidigital number, since it uses as much as digits as its factorization.

7738516948769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840721920, while the sum is 80.

The spelling of 7738516948769 in words is "seven trillion, seven hundred thirty-eight billion, five hundred sixteen million, nine hundred forty-eight thousand, seven hundred sixty-nine".