72843850506239 has 8 divisors (see below), whose sum is σ = 73786524102720. Its totient is φ = 71901691898400.

The previous prime is 72843850506227. The next prime is 72843850506277. The reversal of 72843850506239 is 93260505834827.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72843850506239 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 (72843850506209) 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, 128462432 + ... + 129028229.

It is an arithmetic number, because the mean of its divisors is an integer number (9223315512840).

Almost surely, 2^{72843850506239} is an apocalyptic number.

72843850506239 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

72843850506239 is a deficient number, since it is larger than the sum of its proper divisors (942673596481).

72843850506239 is a wasteful number, since it uses less digits than its factorization.

72843850506239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257494321.

The product of its (nonzero) digits is 87091200, while the sum is 62.

The spelling of 72843850506239 in words is "seventy-two trillion, eight hundred forty-three billion, eight hundred fifty million, five hundred six thousand, two hundred thirty-nine".