12810589537 has 4 divisors (see below), whose sum is σ = 12923957700. Its totient is φ = 12697221376.

The previous prime is 12810589511. The next prime is 12810589549. The reversal of 12810589537 is 73598501821.

12810589537 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 293231376 + 12517358161 = 17124^2 + 111881^2 .

It is a cyclic number.

It is not a de Polignac number, because 12810589537 - 2¹⁹ = 12810065249 is a prime.

It is a super-2 number, since 2×12810589537² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12810589567) 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 3 ways as a sum of consecutive naturals, for example, 56683912 + ... + 56684137.

It is an arithmetic number, because the mean of its divisors is an integer number (3230989425).

Almost surely, 2^12810589537 is an apocalyptic number.

It is an amenable number.

12810589537 is a deficient number, since it is larger than the sum of its proper divisors (113368163).

12810589537 is a wasteful number, since it uses less digits than its factorization.

12810589537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113368162.

The product of its (nonzero) digits is 604800, while the sum is 49.

The spelling of 12810589537 in words is "twelve billion, eight hundred ten million, five hundred eighty-nine thousand, five hundred thirty-seven".