10000871585 has 4 divisors (see below), whose sum is σ = 12001045908. Its totient is φ = 8000697264.

The previous prime is 10000871567. The next prime is 10000871669. The reversal of 10000871585 is 58517800001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58517800001 = 131041 ⋅446561.

It can be written as a sum of positive squares in 2 ways, for example, as 1062303649 + 8938567936 = 32593^2 + 94544^2 .

It is a cyclic number.

It is not a de Polignac number, because 10000871585 - 2³² = 5705904289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000087154 + ... + 1000087163.

It is an arithmetic number, because the mean of its divisors is an integer number (3000261477).

Almost surely, 2^10000871585 is an apocalyptic number.

It is an amenable number.

10000871585 is a deficient number, since it is larger than the sum of its proper divisors (2000174323).

10000871585 is an equidigital number, since it uses as much as digits as its factorization.

10000871585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000174322.

The product of its (nonzero) digits is 11200, while the sum is 35.

The spelling of 10000871585 in words is "ten billion, eight hundred seventy-one thousand, five hundred eighty-five".