13947220456 has 16 divisors (see below), whose sum is σ = 28162656900. Its totient is φ = 6437178624.

The previous prime is 13947220451. The next prime is 13947220487. The reversal of 13947220456 is 65402274931.

It can be written as a sum of positive squares in 2 ways, for example, as 12114524356 + 1832696100 = 110066^2 + 42810^2 .

It is not an unprimeable number, because it can be changed into a prime (13947220451) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 67053841 + ... + 67054048.

Almost surely, 2^13947220456 is an apocalyptic number.

It is an amenable number.

13947220456 is an abundant number, since it is smaller than the sum of its proper divisors (14215436444).

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

13947220456 is a wasteful number, since it uses less digits than its factorization.

13947220456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134107908 (or 134107904 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 13947220456 in words is "thirteen billion, nine hundred forty-seven million, two hundred twenty thousand, four hundred fifty-six".