84227085820 has 24 divisors (see below), whose sum is σ = 187281403344. Its totient is φ = 31709020416.

The previous prime is 84227085809. The next prime is 84227085821. The reversal of 84227085820 is 2858072248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84227085821) 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, 123863022 + ... + 123863701.

It is an arithmetic number, because the mean of its divisors is an integer number (7803391806).

Almost surely, 2^84227085820 is an apocalyptic number.

It is an amenable number.

84227085820 is an abundant number, since it is smaller than the sum of its proper divisors (103054317524).

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

84227085820 is a wasteful number, since it uses less digits than its factorization.

84227085820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247726749 (or 247726747 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 46.

The spelling of 84227085820 in words is "eighty-four billion, two hundred twenty-seven million, eighty-five thousand, eight hundred twenty".