12724094409 has 32 divisors (see below), whose sum is σ = 18633646080. Its totient is φ = 7674870528.

The previous prime is 12724094389. The next prime is 12724094437. The reversal of 12724094409 is 90449042721.

It is not a de Polignac number, because 12724094409 - 2⁷ = 12724094281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12724094609) 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, 2641287 + ... + 2646099.

It is an arithmetic number, because the mean of its divisors is an integer number (582301440).

Almost surely, 2^12724094409 is an apocalyptic number.

It is an amenable number.

12724094409 is a deficient number, since it is larger than the sum of its proper divisors (5909551671).

12724094409 is a wasteful number, since it uses less digits than its factorization.

12724094409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6161.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 12724094409 in words is "twelve billion, seven hundred twenty-four million, ninety-four thousand, four hundred nine".