12773804465 has 8 divisors (see below), whose sum is σ = 15330442920. Its totient is φ = 10217791872.

The previous prime is 12773804429. The next prime is 12773804473. The reversal of 12773804465 is 56440837721.

12773804465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6813346849 + 5960457616 = 82543^2 + 77204^2 .

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 12773804465 - 2²⁰ = 12772755889 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 110324 + ... + 194213.

It is an arithmetic number, because the mean of its divisors is an integer number (1916305365).

Almost surely, 2^12773804465 is an apocalyptic number.

It is an amenable number.

12773804465 is a deficient number, since it is larger than the sum of its proper divisors (2556638455).

12773804465 is an equidigital number, since it uses as much as digits as its factorization.

12773804465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312931.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 12773804465 in words is "twelve billion, seven hundred seventy-three million, eight hundred four thousand, four hundred sixty-five".