12893650944 has 128 divisors (see below), whose sum is σ = 35500047360. Its totient is φ = 4158259200.

The previous prime is 12893650871. The next prime is 12893650993. The reversal of 12893650944 is 44905639821.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×12893650944² (a number of 21 digits) contains 22 as substring.

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, 3045309 + ... + 3049539.

It is an arithmetic number, because the mean of its divisors is an integer number (277344120).

Almost surely, 2^12893650944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12893650944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17750023680).

12893650944 is an abundant number, since it is smaller than the sum of its proper divisors (22606396416).

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

12893650944 is an frugal number, since it uses more digits than its factorization.

12893650944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4295 (or 4267 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 12893650944 in words is "twelve billion, eight hundred ninety-three million, six hundred fifty thousand, nine hundred forty-four".