12621632806 has 16 divisors (see below), whose sum is σ = 18965576448. Its totient is φ = 6299785800.

The previous prime is 12621632783. The next prime is 12621632833. The reversal of 12621632806 is 60823612621.

12621632806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12621632806² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 5041351 + ... + 5043853.

It is an arithmetic number, because the mean of its divisors is an integer number (1185348528).

Almost surely, 2^12621632806 is an apocalyptic number.

12621632806 is a deficient number, since it is larger than the sum of its proper divisors (6343943642).

12621632806 is a wasteful number, since it uses less digits than its factorization.

12621632806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5907.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 12621632806 in words is "twelve billion, six hundred twenty-one million, six hundred thirty-two thousand, eight hundred six".