12894180443 has 4 divisors (see below), whose sum is σ = 13454797008. Its totient is φ = 12333563880.

The previous prime is 12894180407. The next prime is 12894180449. The reversal of 12894180443 is 34408149821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12894180443 - 2⁶ = 12894180379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12894180394 and 12894180403.

It is not an unprimeable number, because it can be changed into a prime (12894180449) 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, 280308248 + ... + 280308293.

It is an arithmetic number, because the mean of its divisors is an integer number (3363699252).

Almost surely, 2^12894180443 is an apocalyptic number.

12894180443 is a deficient number, since it is larger than the sum of its proper divisors (560616565).

12894180443 is an equidigital number, since it uses as much as digits as its factorization.

12894180443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560616564.

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 12894180443 in words is "twelve billion, eight hundred ninety-four million, one hundred eighty thousand, four hundred forty-three".