83209395964439 has 16 divisors (see below), whose sum is σ = 86000780785920. Its totient is φ = 80424727130880.

The previous prime is 83209395964393. The next prime is 83209395964451. The reversal of 83209395964439 is 93446959390238.

It is not a de Polignac number, because 83209395964439 - 2¹² = 83209395960343 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 (83209395964139) 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, 344532977 + ... + 344774405.

It is an arithmetic number, because the mean of its divisors is an integer number (5375048799120).

Almost surely, 2^{83209395964439} is an apocalyptic number.

83209395964439 is a deficient number, since it is larger than the sum of its proper divisors (2791384821481).

83209395964439 is a wasteful number, since it uses less digits than its factorization.

83209395964439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255290.

The product of its (nonzero) digits is 1360488960, while the sum is 74.

The spelling of 83209395964439 in words is "eighty-three trillion, two hundred nine billion, three hundred ninety-five million, nine hundred sixty-four thousand, four hundred thirty-nine".