12773194925 has 6 divisors (see below), whose sum is σ = 15838761738. Its totient is φ = 10218555920.

The previous prime is 12773194921. The next prime is 12773194933. The reversal of 12773194925 is 52949137721.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 335146249 + 12438048676 = 18307^2 + 111526^2 .

It is not a de Polignac number, because 12773194925 - 2² = 12773194921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12773194921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 255463874 + ... + 255463923.

It is an arithmetic number, because the mean of its divisors is an integer number (2639793623).

Almost surely, 2^12773194925 is an apocalyptic number.

It is an amenable number.

12773194925 is a deficient number, since it is larger than the sum of its proper divisors (3065566813).

12773194925 is an equidigital number, since it uses as much as digits as its factorization.

12773194925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510927807 (or 510927802 counting only the distinct ones).

The product of its digits is 952560, while the sum is 50.

The spelling of 12773194925 in words is "twelve billion, seven hundred seventy-three million, one hundred ninety-four thousand, nine hundred twenty-five".