7882610261 has 2 divisors, whose sum is σ = 7882610262. Its totient is φ = 7882610260.

The previous prime is 7882610251. The next prime is 7882610279. The reversal of 7882610261 is 1620162887.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7416482161 + 466128100 = 86119^2 + 21590^2 .

It is a cyclic number.

It is not a de Polignac number, because 7882610261 - 2¹⁰ = 7882609237 is a prime.

It is a super-4 number, since 4×7882610261⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7882610251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3941305130 + 3941305131.

It is an arithmetic number, because the mean of its divisors is an integer number (3941305131).

Almost surely, 2^7882610261 is an apocalyptic number.

It is an amenable number.

7882610261 is a deficient number, since it is larger than the sum of its proper divisors (1).

7882610261 is an equidigital number, since it uses as much as digits as its factorization.

7882610261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 7882610261 is about 88784.0653552201. The cubic root of 7882610261 is about 1990.1692793887.

The spelling of 7882610261 in words is "seven billion, eight hundred eighty-two million, six hundred ten thousand, two hundred sixty-one".