244191397239 has 6 divisors (see below), whose sum is σ = 352720907136. Its totient is φ = 162794264820.

The previous prime is 244191397213. The next prime is 244191397243. The reversal of 244191397239 is 932793191442.

244191397239 is a `hidden beast` number, since 2 + 4 + 4 + 19 + 1 + 397 + 239 = 666.

It is not a de Polignac number, because 244191397239 - 2¹⁵ = 244191364471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244191397139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13566188727 + ... + 13566188744.

It is an arithmetic number, because the mean of its divisors is an integer number (58786817856).

Almost surely, 2^244191397239 is an apocalyptic number.

244191397239 is a deficient number, since it is larger than the sum of its proper divisors (108529509897).

244191397239 is a wasteful number, since it uses less digits than its factorization.

244191397239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27132377477 (or 27132377474 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The spelling of 244191397239 in words is "two hundred forty-four billion, one hundred ninety-one million, three hundred ninety-seven thousand, two hundred thirty-nine".