82256107889 has 2 divisors, whose sum is σ = 82256107890. Its totient is φ = 82256107888.

The previous prime is 82256107883. The next prime is 82256107907. The reversal of 82256107889 is 98870165228.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79068940864 + 3187167025 = 281192^2 + 56455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82256107889 is a prime.

It is not a weakly prime, because it can be changed into another prime (82256107883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41128053944 + 41128053945.

It is an arithmetic number, because the mean of its divisors is an integer number (41128053945).

Almost surely, 2^82256107889 is an apocalyptic number.

It is an amenable number.

82256107889 is a deficient number, since it is larger than the sum of its proper divisors (1).

82256107889 is an equidigital number, since it uses as much as digits as its factorization.

82256107889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 56.

The spelling of 82256107889 in words is "eighty-two billion, two hundred fifty-six million, one hundred seven thousand, eight hundred eighty-nine".