844424930131909 has 16 divisors (see below), whose sum is σ = 985964515158528. Its totient is φ = 708123905741952.

The previous prime is 844424930131907. The next prime is 844424930131921. The reversal of 844424930131909 is 909131039424448.

It is not a de Polignac number, because 844424930131909 - 2¹ = 844424930131907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844424930131907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486532362 + ... + 488264875.

It is an arithmetic number, because the mean of its divisors is an integer number (61622782197408).

Almost surely, 2^{844424930131909} is an apocalyptic number.

It is an amenable number.

844424930131909 is a deficient number, since it is larger than the sum of its proper divisors (141539585026619).

844424930131909 is a wasteful number, since it uses less digits than its factorization.

844424930131909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974799924.

The product of its (nonzero) digits is 26873856, while the sum is 61.

The spelling of 844424930131909 in words is "eight hundred forty-four trillion, four hundred twenty-four billion, nine hundred thirty million, one hundred thirty-one thousand, nine hundred nine".