84181324865 has 8 divisors (see below), whose sum is σ = 110201007168. Its totient is φ = 61222781680.

The previous prime is 84181324831. The next prime is 84181324883. The reversal of 84181324865 is 56842318148.

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

It is not a de Polignac number, because 84181324865 - 2¹⁴ = 84181308481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765284717 + ... + 765284826.

It is an arithmetic number, because the mean of its divisors is an integer number (13775125896).

Almost surely, 2^84181324865 is an apocalyptic number.

It is an amenable number.

84181324865 is a deficient number, since it is larger than the sum of its proper divisors (26019682303).

84181324865 is a wasteful number, since it uses less digits than its factorization.

84181324865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530569559.

The product of its digits is 1474560, while the sum is 50.

The spelling of 84181324865 in words is "eighty-four billion, one hundred eighty-one million, three hundred twenty-four thousand, eight hundred sixty-five".