12580039281 has 4 divisors (see below), whose sum is σ = 16773385712. Its totient is φ = 8386692852.

The previous prime is 12580039273. The next prime is 12580039309. The reversal of 12580039281 is 18293008521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12580039281 - 2³ = 12580039273 is a prime.

It is a super-2 number, since 2×12580039281² (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 (12580039981) 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, 2096673211 + ... + 2096673216.

It is an arithmetic number, because the mean of its divisors is an integer number (4193346428).

Almost surely, 2^12580039281 is an apocalyptic number.

It is an amenable number.

12580039281 is a deficient number, since it is larger than the sum of its proper divisors (4193346431).

12580039281 is an equidigital number, since it uses as much as digits as its factorization.

12580039281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193346430.

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 12580039281 in words is "twelve billion, five hundred eighty million, thirty-nine thousand, two hundred eighty-one".