12850005281 has 8 divisors (see below), whose sum is σ = 12924928800. Its totient is φ = 12775116960.

The previous prime is 12850005239. The next prime is 12850005307. The reversal of 12850005281 is 18250005821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12850005281 - 2¹⁰ = 12850004257 is a prime.

It is a super-2 number, since 2×12850005281² (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 (12850005211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1192325 + ... + 1203053.

It is an arithmetic number, because the mean of its divisors is an integer number (1615616100).

Almost surely, 2^12850005281 is an apocalyptic number.

It is an amenable number.

12850005281 is a deficient number, since it is larger than the sum of its proper divisors (74923519).

12850005281 is a wasteful number, since it uses less digits than its factorization.

12850005281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17599.

The product of its (nonzero) digits is 6400, while the sum is 32.

The spelling of 12850005281 in words is "twelve billion, eight hundred fifty million, five thousand, two hundred eighty-one".