12860271781 has 8 divisors (see below), whose sum is σ = 15094682240. Its totient is φ = 10725168528.

The previous prime is 12860271779. The next prime is 12860271791. The reversal of 12860271781 is 18717206821.

12860271781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12860271781 - 2¹ = 12860271779 is a prime.

It is a super-2 number, since 2×12860271781² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12860271791) 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 7 ways as a sum of consecutive naturals, for example, 24826521 + ... + 24827038.

It is an arithmetic number, because the mean of its divisors is an integer number (1886835280).

Almost surely, 2^12860271781 is an apocalyptic number.

It is an amenable number.

12860271781 is a deficient number, since it is larger than the sum of its proper divisors (2234410459).

12860271781 is an equidigital number, since it uses as much as digits as its factorization.

12860271781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49653603.

The product of its (nonzero) digits is 75264, while the sum is 43.

The spelling of 12860271781 in words is "twelve billion, eight hundred sixty million, two hundred seventy-one thousand, seven hundred eighty-one".