12587831073 has 12 divisors (see below), whose sum is σ = 18184131108. Its totient is φ = 8391098880.

The previous prime is 12587831041. The next prime is 12587831093. The reversal of 12587831073 is 37013878521.

12587831073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5999586849 + 6588244224 = 77457^2 + 81168^2 .

It is not a de Polignac number, because 12587831073 - 2⁵ = 12587831041 is a prime.

It is a super-2 number, since 2×12587831073² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12587831093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45261 + ... + 164997.

It is an arithmetic number, because the mean of its divisors is an integer number (1515344259).

Almost surely, 2^12587831073 is an apocalyptic number.

It is an amenable number.

12587831073 is a deficient number, since it is larger than the sum of its proper divisors (5596300035).

12587831073 is a wasteful number, since it uses less digits than its factorization.

12587831073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131424 (or 131421 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 12587831073 in words is "twelve billion, five hundred eighty-seven million, eight hundred thirty-one thousand, seventy-three".