12820674573 has 40 divisors (see below), whose sum is σ = 22246730880. Its totient is φ = 7205980320.

The previous prime is 12820674569. The next prime is 12820674649. The reversal of 12820674573 is 37547602821.

12820674573 is a `hidden beast` number, since 1 + 2 + 8 + 2 + 0 + 6 + 74 + 573 = 666.

It is not a de Polignac number, because 12820674573 - 2² = 12820674569 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12820674553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 150753 + ... + 219926.

It is an arithmetic number, because the mean of its divisors is an integer number (556168272).

Almost surely, 2^12820674573 is an apocalyptic number.

It is an amenable number.

12820674573 is a deficient number, since it is larger than the sum of its proper divisors (9426056307).

12820674573 is an equidigital number, since it uses as much as digits as its factorization.

12820674573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370759 (or 370750 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 12820674573 in words is "twelve billion, eight hundred twenty million, six hundred seventy-four thousand, five hundred seventy-three".