7882116481 has 2 divisors, whose sum is σ = 7882116482. Its totient is φ = 7882116480.

The previous prime is 7882116467. The next prime is 7882116493. The reversal of 7882116481 is 1846112887.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6402560256 + 1479556225 = 80016^2 + 38465^2 .

It is an emirp because it is prime and its reverse (1846112887) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7882116481 - 2³¹ = 5734632833 is a prime.

It is a super-2 number, since 2×7882116481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7882116421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3941058240 + 3941058241.

It is an arithmetic number, because the mean of its divisors is an integer number (3941058241).

Almost surely, 2^7882116481 is an apocalyptic number.

It is an amenable number.

7882116481 is a deficient number, since it is larger than the sum of its proper divisors (1).

7882116481 is an equidigital number, since it uses as much as digits as its factorization.

7882116481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172032, while the sum is 46.

The square root of 7882116481 is about 88781.2845198807. The cubic root of 7882116481 is about 1990.1277226677.

The spelling of 7882116481 in words is "seven billion, eight hundred eighty-two million, one hundred sixteen thousand, four hundred eighty-one".