12625012625 has 24 divisors (see below), whose sum is σ = 15915167736. Its totient is φ = 9999000000.

The previous prime is 12625012619. The next prime is 12625012633. The reversal of 12625012625 is 52621052621.

It can be written as a sum of positive squares in 12 ways, for example, as 181387024 + 12443625601 = 13468^2 + 111551^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12625012625 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12625012591 and 12625012600.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1270175 + ... + 1280075.

It is an arithmetic number, because the mean of its divisors is an integer number (663131989).

Almost surely, 2^12625012625 is an apocalyptic number.

It is an amenable number.

12625012625 is a deficient number, since it is larger than the sum of its proper divisors (3290155111).

12625012625 is an frugal number, since it uses more digits than its factorization.

12625012625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10118 (or 10007 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 12625012625 in words is "twelve billion, six hundred twenty-five million, twelve thousand, six hundred twenty-five".