8084640065 has 8 divisors (see below), whose sum is σ = 9702089088. Its totient is φ = 6467364720.

The previous prime is 8084640061. The next prime is 8084640079. The reversal of 8084640065 is 5600464808.

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

It is not a de Polignac number, because 8084640065 - 2² = 8084640061 is a prime.

It is a super-2 number, since 2×8084640065² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8084640061) 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, 105320 + ... + 165110.

It is an arithmetic number, because the mean of its divisors is an integer number (1212761136).

Almost surely, 2^8084640065 is an apocalyptic number.

It is an amenable number.

8084640065 is a deficient number, since it is larger than the sum of its proper divisors (1617449023).

8084640065 is a wasteful number, since it uses less digits than its factorization.

8084640065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86839.

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 8084640065 is about 89914.6265353975. The cubic root of 8084640065 is about 2007.0286091415.

The spelling of 8084640065 in words is "eight billion, eighty-four million, six hundred forty thousand, sixty-five".