13800011728 has 10 divisors (see below), whose sum is σ = 26737522754. Its totient is φ = 6900005856.

The previous prime is 13800011713. The next prime is 13800011789. The reversal of 13800011728 is 82711000831.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10455471504 + 3344540224 = 102252^2 + 57832^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13800011728.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 431250351 + ... + 431250382.

Almost surely, 2^13800011728 is an apocalyptic number.

It is an amenable number.

13800011728 is a deficient number, since it is larger than the sum of its proper divisors (12937511026).

13800011728 is an equidigital number, since it uses as much as digits as its factorization.

13800011728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862500741 (or 862500735 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 31.

The spelling of 13800011728 in words is "thirteen billion, eight hundred million, eleven thousand, seven hundred twenty-eight".