12638908150 has 24 divisors (see below), whose sum is σ = 25645494744. Its totient is φ = 4595966400.

The previous prime is 12638908147. The next prime is 12638908157. The reversal of 12638908150 is 5180983621.

It is a junction number, because it is equal to n+sod(n) for n = 12638908097 and 12638908106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12638908157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11489367 + ... + 11490466.

It is an arithmetic number, because the mean of its divisors is an integer number (1068562281).

Almost surely, 2^12638908150 is an apocalyptic number.

12638908150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12638908150 is an abundant number, since it is smaller than the sum of its proper divisors (13006586594).

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

12638908150 is a wasteful number, since it uses less digits than its factorization.

12638908150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22979856 (or 22979851 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 12638908150 in words is "twelve billion, six hundred thirty-eight million, nine hundred eight thousand, one hundred fifty".