12443564634 has 8 divisors (see below), whose sum is σ = 24887129280. Its totient is φ = 4147854876.

The previous prime is 12443564629. The next prime is 12443564669. The reversal of 12443564634 is 43646534421.

It is a sphenic number, since it is the product of 3 distinct primes.

12443564634 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1036963714 + ... + 1036963725.

It is an arithmetic number, because the mean of its divisors is an integer number (3110891160).

Almost surely, 2^12443564634 is an apocalyptic number.

12443564634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12443564634 is a wasteful number, since it uses less digits than its factorization.

12443564634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073927444.

The product of its digits is 829440, while the sum is 42.

It can be divided in two parts, 1244356 and 4634, that added together give a triangular number (1248990 = T₁₅₈₀).

The spelling of 12443564634 in words is "twelve billion, four hundred forty-three million, five hundred sixty-four thousand, six hundred thirty-four".