12625219045 has 4 divisors (see below), whose sum is σ = 15150262860. Its totient is φ = 10100175232.

The previous prime is 12625219039. The next prime is 12625219051. The reversal of 12625219045 is 54091252621.

12625219045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 112362²+1.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12625219039) and next prime (12625219051).

It can be written as a sum of positive squares in 2 ways, for example, as 4545186724 + 8080032321 = 67418^2 + 89889^2 .

It is a cyclic number.

It is not a de Polignac number, because 12625219045 - 2³ = 12625219037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12625218995 and 12625219013.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1262521900 + ... + 1262521909.

It is an arithmetic number, because the mean of its divisors is an integer number (3787565715).

Almost surely, 2^12625219045 is an apocalyptic number.

It is an amenable number.

12625219045 is a deficient number, since it is larger than the sum of its proper divisors (2525043815).

12625219045 is an equidigital number, since it uses as much as digits as its factorization.

12625219045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525043814.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 12625219045 in words is "twelve billion, six hundred twenty-five million, two hundred nineteen thousand, forty-five".