84006549174239 has 4 divisors (see below), whose sum is σ = 84017598313656. Its totient is φ = 83995500034824.

The previous prime is 84006549174217. The next prime is 84006549174269. The reversal of 84006549174239 is 93247194560048.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84006549174239 - 2²⁰ = 84006548125663 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 (84006549174269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5524558304 + ... + 5524573509.

It is an arithmetic number, because the mean of its divisors is an integer number (21004399578414).

It is a 1-persistent number, because it is pandigital, but 2⋅84006549174239 = 168013098348478 is not.

Almost surely, 2^{84006549174239} is an apocalyptic number.

84006549174239 is a deficient number, since it is larger than the sum of its proper divisors (11049139417).

84006549174239 is a wasteful number, since it uses less digits than its factorization.

84006549174239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11049139416.

The product of its (nonzero) digits is 52254720, while the sum is 62.

The spelling of 84006549174239 in words is "eighty-four trillion, six billion, five hundred forty-nine million, one hundred seventy-four thousand, two hundred thirty-nine".