12745984733 has 4 divisors (see below), whose sum is σ = 12747936348. Its totient is φ = 12744033120.

The previous prime is 12745984717. The next prime is 12745984747. The reversal of 12745984733 is 33748954721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33748954721 = 5113 ⋅6600617.

It can be written as a sum of positive squares in 2 ways, for example, as 2186778169 + 10559206564 = 46763^2 + 102758^2 .

It is a cyclic number.

It is not a de Polignac number, because 12745984733 - 2⁴ = 12745984717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12745984333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 965978 + ... + 979083.

It is an arithmetic number, because the mean of its divisors is an integer number (3186984087).

Almost surely, 2^12745984733 is an apocalyptic number.

It is an amenable number.

12745984733 is a deficient number, since it is larger than the sum of its proper divisors (1951615).

12745984733 is an equidigital number, since it uses as much as digits as its factorization.

12745984733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951614.

The product of its digits is 5080320, while the sum is 53.

The spelling of 12745984733 in words is "twelve billion, seven hundred forty-five million, nine hundred eighty-four thousand, seven hundred thirty-three".