13227474561 has 32 divisors (see below), whose sum is σ = 20495106048. Its totient is φ = 7432508160.

The previous prime is 13227474539. The next prime is 13227474569. The reversal of 13227474561 is 16547472231.

It is not a de Polignac number, because 13227474561 - 2⁹ = 13227474049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13227474569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279426 + ... + 323316.

It is an arithmetic number, because the mean of its divisors is an integer number (640472064).

Almost surely, 2^13227474561 is an apocalyptic number.

It is an amenable number.

13227474561 is a deficient number, since it is larger than the sum of its proper divisors (7267631487).

13227474561 is a wasteful number, since it uses less digits than its factorization.

13227474561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44141.

The product of its digits is 282240, while the sum is 42.

The spelling of 13227474561 in words is "thirteen billion, two hundred twenty-seven million, four hundred seventy-four thousand, five hundred sixty-one".