13281126852 has 96 divisors (see below), whose sum is σ = 37573466112. Its totient is φ = 3564366336.

The previous prime is 13281126827. The next prime is 13281126893. The reversal of 13281126852 is 25862118231.

It is a self number, because there is not a number n which added to its sum of digits gives 13281126852.

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 31 ways as a sum of consecutive naturals, for example, 737953 + ... + 755735.

It is an arithmetic number, because the mean of its divisors is an integer number (391390272).

Almost surely, 2^13281126852 is an apocalyptic number.

13281126852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13281126852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18786733056).

13281126852 is an abundant number, since it is smaller than the sum of its proper divisors (24292339260).

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

13281126852 is a wasteful number, since it uses less digits than its factorization.

13281126852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18337 (or 18335 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The spelling of 13281126852 in words is "thirteen billion, two hundred eighty-one million, one hundred twenty-six thousand, eight hundred fifty-two".