12685210533 has 12 divisors (see below), whose sum is σ = 18365600448. Its totient is φ = 8437183080.

The previous prime is 12685210481. The next prime is 12685210541. The reversal of 12685210533 is 33501258621.

12685210533 is a `hidden beast` number, since 1 + 2 + 68 + 52 + 10 + 533 = 666.

It is not a de Polignac number, because 12685210533 - 2¹⁴ = 12685194149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12685210133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1631235 + ... + 1638992.

It is an arithmetic number, because the mean of its divisors is an integer number (1530466704).

Almost surely, 2^12685210533 is an apocalyptic number.

It is an amenable number.

12685210533 is a deficient number, since it is larger than the sum of its proper divisors (5680389915).

12685210533 is a wasteful number, since it uses less digits than its factorization.

12685210533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270664 (or 3270661 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 12685210533 in words is "twelve billion, six hundred eighty-five million, two hundred ten thousand, five hundred thirty-three".