12860341991 has 6 divisors (see below), whose sum is σ = 14959989720. Its totient is φ = 11023150236.

The previous prime is 12860341987. The next prime is 12860342017. The reversal of 12860341991 is 19914306821.

It is not a de Polignac number, because 12860341991 - 2² = 12860341987 is a prime.

It is a super-2 number, since 2×12860341991² (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 (12860341931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131227931 + ... + 131228028.

It is an arithmetic number, because the mean of its divisors is an integer number (2493331620).

Almost surely, 2^12860341991 is an apocalyptic number.

12860341991 is a deficient number, since it is larger than the sum of its proper divisors (2099647729).

12860341991 is an equidigital number, since it uses as much as digits as its factorization.

12860341991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262455973 (or 262455966 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 12860341991 in words is "twelve billion, eight hundred sixty million, three hundred forty-one thousand, nine hundred ninety-one".