84684217772 has 24 divisors (see below), whose sum is σ = 184765566720. Its totient is φ = 32993850960.

The previous prime is 84684217771. The next prime is 84684217829. The reversal of 84684217772 is 27771248648.

It is not an unprimeable number, because it can be changed into a prime (84684217771) 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, 137474072 + ... + 137474687.

It is an arithmetic number, because the mean of its divisors is an integer number (7698565280).

Almost surely, 2^84684217772 is an apocalyptic number.

It is an amenable number.

84684217772 is an abundant number, since it is smaller than the sum of its proper divisors (100081348948).

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

84684217772 is a wasteful number, since it uses less digits than its factorization.

84684217772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274948781 (or 274948779 counting only the distinct ones).

The product of its digits is 8429568, while the sum is 56.

The spelling of 84684217772 in words is "eighty-four billion, six hundred eighty-four million, two hundred seventeen thousand, seven hundred seventy-two".