13557294009 has 24 divisors (see below), whose sum is σ = 22383458240. Its totient is φ = 7745930208.

The previous prime is 13557294007. The next prime is 13557294019. The reversal of 13557294009 is 90049275531.

It is a happy number.

13557294009 is a `hidden beast` number, since 1 + 3 + 557 + 2 + 94 + 0 + 0 + 9 = 666.

13557294009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13557294009 - 2¹ = 13557294007 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13557294007) 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 23 ways as a sum of consecutive naturals, for example, 695802 + ... + 715020.

Almost surely, 2^13557294009 is an apocalyptic number.

It is an amenable number.

13557294009 is a deficient number, since it is larger than the sum of its proper divisors (8826164231).

13557294009 is a wasteful number, since it uses less digits than its factorization.

13557294009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30429 (or 30426 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The spelling of 13557294009 in words is "thirteen billion, five hundred fifty-seven million, two hundred ninety-four thousand, nine".