13272850138 has 4 divisors (see below), whose sum is σ = 19909275210. Its totient is φ = 6636425068.

The previous prime is 13272850111. The next prime is 13272850139. The reversal of 13272850138 is 83105827231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8035867449 + 5236982689 = 89643^2 + 72367^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13272850138.

It is not an unprimeable number, because it can be changed into a prime (13272850139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3318212533 + ... + 3318212536.

Almost surely, 2^13272850138 is an apocalyptic number.

13272850138 is a deficient number, since it is larger than the sum of its proper divisors (6636425072).

13272850138 is an equidigital number, since it uses as much as digits as its factorization.

13272850138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6636425071.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 13272850138 in words is "thirteen billion, two hundred seventy-two million, eight hundred fifty thousand, one hundred thirty-eight".