12830856367849 has 24 divisors (see below), whose sum is σ = 14164980180120. Its totient is φ = 11553447229440.

The previous prime is 12830856367831. The next prime is 12830856367871. The reversal of 12830856367849 is 94876365803821.

It can be written as a sum of positive squares in 12 ways, for example, as 11375563981824 + 1455292386025 = 3372768^2 + 1206355^2 .

It is not a de Polignac number, because 12830856367849 - 2²⁷ = 12830722150121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12830856367829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182852679 + ... + 182922835.

It is an arithmetic number, because the mean of its divisors is an integer number (590207507505).

It is a 1-persistent number, because it is pandigital, but 2⋅12830856367849 = 25661712735698 is not.

Almost surely, 2^{12830856367849} is an apocalyptic number.

It is an amenable number.

12830856367849 is a deficient number, since it is larger than the sum of its proper divisors (1334123812271).

12830856367849 is an equidigital number, since it uses as much as digits as its factorization.

12830856367849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78621 (or 78580 counting only the distinct ones).

The product of its (nonzero) digits is 418037760, while the sum is 70.

The spelling of 12830856367849 in words is "twelve trillion, eight hundred thirty billion, eight hundred fifty-six million, three hundred sixty-seven thousand, eight hundred forty-nine".