12443634016 has 24 divisors (see below), whose sum is σ = 26725532904. Its totient is φ = 5656197120.

The previous prime is 12443633989. The next prime is 12443634067. The reversal of 12443634016 is 61043634421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17675265 + ... + 17675968.

It is an arithmetic number, because the mean of its divisors is an integer number (1113563871).

Almost surely, 2^12443634016 is an apocalyptic number.

12443634016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12443634016 is an abundant number, since it is smaller than the sum of its proper divisors (14281898888).

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

12443634016 is a wasteful number, since it uses less digits than its factorization.

12443634016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35351254 (or 35351246 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 12443634016 in words is "twelve billion, four hundred forty-three million, six hundred thirty-four thousand, sixteen".