12845823629 has 4 divisors (see below), whose sum is σ = 12851998620. Its totient is φ = 12839648640.

The previous prime is 12845823593. The next prime is 12845823647. The reversal of 12845823629 is 92632854821.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2779714729 + 10066108900 = 52723^2 + 100330^2 .

It is a cyclic number.

It is not a de Polignac number, because 12845823629 - 2¹² = 12845819533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12845828629) 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, 3084374 + ... + 3088535.

It is an arithmetic number, because the mean of its divisors is an integer number (3212999655).

Almost surely, 2^12845823629 is an apocalyptic number.

It is an amenable number.

12845823629 is a deficient number, since it is larger than the sum of its proper divisors (6174991).

12845823629 is an equidigital number, since it uses as much as digits as its factorization.

12845823629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6174990.

The product of its digits is 1658880, while the sum is 50.

The spelling of 12845823629 in words is "twelve billion, eight hundred forty-five million, eight hundred twenty-three thousand, six hundred twenty-nine".