12443555312 has 40 divisors (see below), whose sum is σ = 25692926976. Its totient is φ = 5824634816.

The previous prime is 12443555291. The next prime is 12443555329. The reversal of 12443555312 is 21355534421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342428 + ... + 377019.

Almost surely, 2^12443555312 is an apocalyptic number.

It is an amenable number.

12443555312 is an abundant number, since it is smaller than the sum of its proper divisors (13249371664).

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

12443555312 is a wasteful number, since it uses less digits than its factorization.

12443555312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719525 (or 719519 counting only the distinct ones).

The product of its digits is 72000, while the sum is 35.

The spelling of 12443555312 in words is "twelve billion, four hundred forty-three million, five hundred fifty-five thousand, three hundred twelve".