12638073570 has 32 divisors (see below), whose sum is σ = 30365635968. Its totient is φ = 3366346368.

The previous prime is 12638073551. The next prime is 12638073587. The reversal of 12638073570 is 7537083621.

12638073570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 210859 + ... + 264078.

It is an arithmetic number, because the mean of its divisors is an integer number (948926124).

Almost surely, 2^12638073570 is an apocalyptic number.

12638073570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12638073570 is an abundant number, since it is smaller than the sum of its proper divisors (17727562398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12638073570 is a wasteful number, since it uses less digits than its factorization.

12638073570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475834.

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 12638073570 in words is "twelve billion, six hundred thirty-eight million, seventy-three thousand, five hundred seventy".