84322312605 has 20 divisors (see below), whose sum is σ = 151155553692. Its totient is φ = 44971899840.

The previous prime is 84322312567. The next prime is 84322312667. The reversal of 84322312605 is 50621322348.

84322312605 is a `hidden beast` number, since 8 + 4 + 32 + 2 + 3 + 12 + 605 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 34580377764 + 49741934841 = 185958^2 + 223029^2 .

It is not a de Polignac number, because 84322312605 - 2⁶ = 84322312541 is a prime.

It is a super-2 number, since 2×84322312605² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 84322312605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 104101216 + ... + 104102025.

Almost surely, 2^84322312605 is an apocalyptic number.

It is an amenable number.

84322312605 is a deficient number, since it is larger than the sum of its proper divisors (66833241087).

84322312605 is a wasteful number, since it uses less digits than its factorization.

84322312605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208203258 (or 208203249 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 84322312605 in words is "eighty-four billion, three hundred twenty-two million, three hundred twelve thousand, six hundred five".