12289433405 has 8 divisors (see below), whose sum is σ = 14760624600. Its totient is φ = 9822677056.

The previous prime is 12289433389. The next prime is 12289433407. The reversal of 12289433405 is 50433498221.

It can be written as a sum of positive squares in 4 ways, for example, as 267845956 + 12021587449 = 16366^2 + 109643^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12289433405 - 2⁴ = 12289433389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12289433407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1102610 + ... + 1113699.

It is an arithmetic number, because the mean of its divisors is an integer number (1845078075).

Almost surely, 2^12289433405 is an apocalyptic number.

It is an amenable number.

12289433405 is a deficient number, since it is larger than the sum of its proper divisors (2471191195).

12289433405 is a wasteful number, since it uses less digits than its factorization.

12289433405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217423.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 12289433405 in words is "twelve billion, two hundred eighty-nine million, four hundred thirty-three thousand, four hundred five".