7886741281 has 2 divisors, whose sum is σ = 7886741282. Its totient is φ = 7886741280.

The previous prime is 7886741207. The next prime is 7886741309. The reversal of 7886741281 is 1821476887.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7527297600 + 359443681 = 86760^2 + 18959^2 .

It is an emirp because it is prime and its reverse (1821476887) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7886741281 - 2⁹ = 7886740769 is a prime.

It is a super-2 number, since 2×7886741281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7886741981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3943370640 + 3943370641.

It is an arithmetic number, because the mean of its divisors is an integer number (3943370641).

Almost surely, 2^7886741281 is an apocalyptic number.

It is an amenable number.

7886741281 is a deficient number, since it is larger than the sum of its proper divisors (1).

7886741281 is an equidigital number, since it uses as much as digits as its factorization.

7886741281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1204224, while the sum is 52.

The square root of 7886741281 is about 88807.3267303999. The cubic root of 7886741281 is about 1990.5168796991.

The spelling of 7886741281 in words is "seven billion, eight hundred eighty-six million, seven hundred forty-one thousand, two hundred eighty-one".