12721675773 has 8 divisors (see below), whose sum is σ = 17960012928. Its totient is φ = 7982227904.

The previous prime is 12721675741. The next prime is 12721675787. The reversal of 12721675773 is 37757612721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12721675773 - 2⁵ = 12721675741 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 (12721675723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124722261 + ... + 124722362.

It is an arithmetic number, because the mean of its divisors is an integer number (2245001616).

Almost surely, 2^12721675773 is an apocalyptic number.

It is an amenable number.

12721675773 is a deficient number, since it is larger than the sum of its proper divisors (5238337155).

12721675773 is a wasteful number, since it uses less digits than its factorization.

12721675773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249444643.

The product of its digits is 864360, while the sum is 48.

The spelling of 12721675773 in words is "twelve billion, seven hundred twenty-one million, six hundred seventy-five thousand, seven hundred seventy-three".