12605634326 has 4 divisors (see below), whose sum is σ = 18908451492. Its totient is φ = 6302817162.

The previous prime is 12605634319. The next prime is 12605634329. The reversal of 12605634326 is 62343650621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62343650621 = 7 ⋅8906235803.

It is a self number, because there is not a number n which added to its sum of digits gives 12605634326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12605634329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3151408580 + ... + 3151408583.

It is an arithmetic number, because the mean of its divisors is an integer number (4727112873).

Almost surely, 2^12605634326 is an apocalyptic number.

12605634326 is a deficient number, since it is larger than the sum of its proper divisors (6302817166).

12605634326 is an equidigital number, since it uses as much as digits as its factorization.

12605634326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6302817165.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 12605634326 in words is "twelve billion, six hundred five million, six hundred thirty-four thousand, three hundred twenty-six".