84173240812 has 12 divisors (see below), whose sum is σ = 147493737216. Its totient is φ = 42032173040.

The previous prime is 84173240797. The next prime is 84173240861. The reversal of 84173240812 is 21804237148.

It is a super-3 number, since 3×84173240812³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13608364 + ... + 13614547.

It is an arithmetic number, because the mean of its divisors is an integer number (12291144768).

Almost surely, 2^84173240812 is an apocalyptic number.

It is an amenable number.

84173240812 is a deficient number, since it is larger than the sum of its proper divisors (63320496404).

84173240812 is a wasteful number, since it uses less digits than its factorization.

84173240812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27223688 (or 27223686 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 84173240812 in words is "eighty-four billion, one hundred seventy-three million, two hundred forty thousand, eight hundred twelve".