84065065272 has 80 divisors (see below), whose sum is σ = 235511234640. Its totient is φ = 28015593984.

The previous prime is 84065065219. The next prime is 84065065277. The reversal of 84065065272 is 27256056048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84065065277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3736168 + ... + 3758600.

It is an arithmetic number, because the mean of its divisors is an integer number (2943890433).

Almost surely, 2^84065065272 is an apocalyptic number.

It is an amenable number.

84065065272 is an abundant number, since it is smaller than the sum of its proper divisors (151446169368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84065065272 is a wasteful number, since it uses less digits than its factorization.

84065065272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28234 (or 28221 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 84065065272 in words is "eighty-four billion, sixty-five million, sixty-five thousand, two hundred seventy-two".