13278874756 has 27 divisors (see below), whose sum is σ = 27035279607. Its totient is φ = 5690254920.

The previous prime is 13278874753. The next prime is 13278874781. The reversal of 13278874756 is 65747887231.

The square root of 13278874756 is 115234.

It is a perfect power (a square), and thus also a powerful number.

13278874756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13278874756.

It is not an unprimeable number, because it can be changed into a prime (13278874753) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 1609161 + ... + 1617391.

Almost surely, 2^13278874756 is an apocalyptic number.

13278874756 is the 115234-th square number.

It is an amenable number.

13278874756 is an abundant number, since it is smaller than the sum of its proper divisors (13756404851).

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

13278874756 is an frugal number, since it uses more digits than its factorization.

13278874756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16480 (or 8240 counting only the distinct ones).

The product of its digits is 15805440, while the sum is 58.

The spelling of 13278874756 in words is "thirteen billion, two hundred seventy-eight million, eight hundred seventy-four thousand, seven hundred fifty-six".