12732813009 has 32 divisors (see below), whose sum is σ = 21647732480. Its totient is φ = 7245676800.

The previous prime is 12732813001. The next prime is 12732813011. The reversal of 12732813009 is 90031823721.

12732813009 is a `hidden beast` number, since 1 + 2 + 73 + 281 + 300 + 9 = 666.

It is not a de Polignac number, because 12732813009 - 2³ = 12732813001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12732813001) 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, 94222 + ... + 185319.

It is an arithmetic number, because the mean of its divisors is an integer number (676491640).

Almost surely, 2^12732813009 is an apocalyptic number.

It is an amenable number.

12732813009 is a deficient number, since it is larger than the sum of its proper divisors (8914919471).

12732813009 is a wasteful number, since it uses less digits than its factorization.

12732813009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279798 (or 279792 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 12732813009 in words is "twelve billion, seven hundred thirty-two million, eight hundred thirteen thousand, nine".