12626525138 has 8 divisors (see below), whose sum is σ = 18944016588. Its totient is φ = 6311852944.

The previous prime is 12626525123. The next prime is 12626525167. The reversal of 12626525138 is 83152562621.

It can be written as a sum of positive squares in 2 ways, for example, as 11326706329 + 1299818809 = 106427^2 + 36053^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12626525095 and 12626525104.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 693581 + ... + 711552.

Almost surely, 2^12626525138 is an apocalyptic number.

12626525138 is a deficient number, since it is larger than the sum of its proper divisors (6317491450).

12626525138 is a wasteful number, since it uses less digits than its factorization.

12626525138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409628.

The product of its digits is 172800, while the sum is 41.

The spelling of 12626525138 in words is "twelve billion, six hundred twenty-six million, five hundred twenty-five thousand, one hundred thirty-eight".