12737821224 has 32 divisors (see below), whose sum is σ = 31924789920. Its totient is φ = 4235242176.

The previous prime is 12737821219. The next prime is 12737821249. The reversal of 12737821224 is 42212873721.

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, 658914 + ... + 677969.

It is an arithmetic number, because the mean of its divisors is an integer number (997649685).

Almost surely, 2^12737821224 is an apocalyptic number.

It is an amenable number.

12737821224 is an abundant number, since it is smaller than the sum of its proper divisors (19186968696).

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

12737821224 is a wasteful number, since it uses less digits than its factorization.

12737821224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337289 (or 1337285 counting only the distinct ones).

The product of its digits is 75264, while the sum is 39.

The spelling of 12737821224 in words is "twelve billion, seven hundred thirty-seven million, eight hundred twenty-one thousand, two hundred twenty-four".