12626418746 has 4 divisors (see below), whose sum is σ = 18939628122. Its totient is φ = 6313209372.

The previous prime is 12626418743. The next prime is 12626418799. The reversal of 12626418746 is 64781462621.

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: 64781462621 = 61283 ⋅1057087.

It can be written as a sum of positive squares in only one way, i.e., 11564636521 + 1061782225 = 107539^2 + 32585^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12626418746.

It is not an unprimeable number, because it can be changed into a prime (12626418743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3156604685 + ... + 3156604688.

Almost surely, 2^12626418746 is an apocalyptic number.

12626418746 is a deficient number, since it is larger than the sum of its proper divisors (6313209376).

12626418746 is an equidigital number, since it uses as much as digits as its factorization.

12626418746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6313209375.

The product of its digits is 774144, while the sum is 47.

The spelling of 12626418746 in words is "twelve billion, six hundred twenty-six million, four hundred eighteen thousand, seven hundred forty-six".