827676682561 has 4 divisors (see below), whose sum is σ = 827733414532. Its totient is φ = 827619950592.

The previous prime is 827676682457. The next prime is 827676682571. The reversal of 827676682561 is 165286676728.

It is a happy number.

827676682561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85720128400 + 741956554161 = 292780^2 + 861369^2 .

It is a cyclic number.

It is not a de Polignac number, because 827676682561 - 2¹³ = 827676674369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 827676682493 and 827676682502.

It is not an unprimeable number, because it can be changed into a prime (827676682571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28344096 + ... + 28373281.

It is an arithmetic number, because the mean of its divisors is an integer number (206933353633).

Almost surely, 2^827676682561 is an apocalyptic number.

It is an amenable number.

827676682561 is a deficient number, since it is larger than the sum of its proper divisors (56731971).

827676682561 is a wasteful number, since it uses less digits than its factorization.

827676682561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56731970.

The product of its digits is 81285120, while the sum is 64.

The spelling of 827676682561 in words is "eight hundred twenty-seven billion, six hundred seventy-six million, six hundred eighty-two thousand, five hundred sixty-one".