9209442124129 has 8 divisors (see below), whose sum is σ = 9928012104360. Its totient is φ = 8492322337536.

The previous prime is 9209442124081. The next prime is 9209442124147. The reversal of 9209442124129 is 9214212449029.

It can be written as a sum of positive squares in 4 ways, for example, as 2243944080400 + 6965498043729 = 1497980^2 + 2639223^2 .

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 9209442124129 - 2⁹ = 9209442123617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9209442124429) 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 7 ways as a sum of consecutive naturals, for example, 362535214 + ... + 362560615.

It is an arithmetic number, because the mean of its divisors is an integer number (1241001513045).

Almost surely, 2^{9209442124129} is an apocalyptic number.

It is an amenable number.

9209442124129 is a deficient number, since it is larger than the sum of its proper divisors (718569980231).

9209442124129 is a wasteful number, since it uses less digits than its factorization.

9209442124129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725096819.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 9209442124129 in words is "nine trillion, two hundred nine billion, four hundred forty-two million, one hundred twenty-four thousand, one hundred twenty-nine".