12749669966224 has 15 divisors (see below), whose sum is σ = 24702513232267. Its totient is φ = 6374827841776.

The previous prime is 12749669966221. The next prime is 12749669966263. The reversal of 12749669966224 is 42266996694721.

The square root of 12749669966224 is 3570668.

It is a perfect power (a square), and thus also a powerful number.

It is a super-4 number, since 4×12749669966224⁴ (a number of 54 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12749669966221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 13836339 + ... + 14729005.

Almost surely, 2^{12749669966224} is an apocalyptic number.

12749669966224 is the 3570668-th square number.

It is an amenable number.

12749669966224 is a deficient number, since it is larger than the sum of its proper divisors (11952843266043).

12749669966224 is an frugal number, since it uses more digits than its factorization.

12749669966224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785342 (or 892669 counting only the distinct ones).

The product of its digits is 846526464, while the sum is 73.

The spelling of 12749669966224 in words is "twelve trillion, seven hundred forty-nine billion, six hundred sixty-nine million, nine hundred sixty-six thousand, two hundred twenty-four".