84085909012 has 12 divisors (see below), whose sum is σ = 168171818080. Its totient is φ = 36036818136.

The previous prime is 84085908953. The next prime is 84085909073. The reversal of 84085909012 is 21090958048.

84085909012 is an admirable number.

It is a super-2 number, since 2×84085909012² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1501534062 + ... + 1501534117.

Almost surely, 2^84085909012 is an apocalyptic number.

It is an amenable number.

84085909012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

84085909012 is a wasteful number, since it uses less digits than its factorization.

84085909012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003068190 (or 3003068188 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 84085909012 in words is "eighty-four billion, eighty-five million, nine hundred nine thousand, twelve".