10427808085 has 4 divisors (see below), whose sum is σ = 12513369708. Its totient is φ = 8342246464.

The previous prime is 10427808073. The next prime is 10427808137. The reversal of 10427808085 is 58080872401.

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 5830696881 + 4597111204 = 76359^2 + 67802^2 .

It is a cyclic number.

It is not a de Polignac number, because 10427808085 - 2²⁷ = 10293590357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1042780804 + ... + 1042780813.

It is an arithmetic number, because the mean of its divisors is an integer number (3128342427).

Almost surely, 2^10427808085 is an apocalyptic number.

It is an amenable number.

10427808085 is a deficient number, since it is larger than the sum of its proper divisors (2085561623).

10427808085 is an equidigital number, since it uses as much as digits as its factorization.

10427808085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085561622.

The product of its (nonzero) digits is 143360, while the sum is 43.

The spelling of 10427808085 in words is "ten billion, four hundred twenty-seven million, eight hundred eight thousand, eighty-five".