827610078881 has 2 divisors, whose sum is σ = 827610078882. Its totient is φ = 827610078880.

The previous prime is 827610078833. The next prime is 827610078913. The reversal of 827610078881 is 188870016728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 809488880656 + 18121198225 = 899716^2 + 134615^2 .

It is a cyclic number.

It is not a de Polignac number, because 827610078881 - 2³⁰ = 826536337057 is a prime.

It is a super-2 number, since 2×827610078881² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (827610068881) 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, 413805039440 + 413805039441.

It is an arithmetic number, because the mean of its divisors is an integer number (413805039441).

Almost surely, 2^827610078881 is an apocalyptic number.

It is an amenable number.

827610078881 is a deficient number, since it is larger than the sum of its proper divisors (1).

827610078881 is an equidigital number, since it uses as much as digits as its factorization.

827610078881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2408448, while the sum is 56.

The spelling of 827610078881 in words is "eight hundred twenty-seven billion, six hundred ten million, seventy-eight thousand, eight hundred eighty-one".