12851414489 has 4 divisors (see below), whose sum is σ = 12863528100. Its totient is φ = 12839300880.

The previous prime is 12851414483. The next prime is 12851414491. The reversal of 12851414489 is 98441415821.

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 9999000025 + 2852414464 = 99995^2 + 53408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12851414489 is a prime.

It is a super-2 number, since 2×12851414489² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12851414483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6055214 + ... + 6057335.

It is an arithmetic number, because the mean of its divisors is an integer number (3215882025).

Almost surely, 2^12851414489 is an apocalyptic number.

It is an amenable number.

12851414489 is a deficient number, since it is larger than the sum of its proper divisors (12113611).

12851414489 is a wasteful number, since it uses less digits than its factorization.

12851414489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12113610.

The product of its digits is 368640, while the sum is 47.

The spelling of 12851414489 in words is "twelve billion, eight hundred fifty-one million, four hundred fourteen thousand, four hundred eighty-nine".