84685964512 has 12 divisors (see below), whose sum is σ = 166725492696. Its totient is φ = 42342982240.

The previous prime is 84685964509. The next prime is 84685964543. The reversal of 84685964512 is 21546958648.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323218164 + ... + 1323218227.

It is an arithmetic number, because the mean of its divisors is an integer number (13893791058).

Almost surely, 2^84685964512 is an apocalyptic number.

It is an amenable number.

84685964512 is a deficient number, since it is larger than the sum of its proper divisors (82039528184).

84685964512 is a wasteful number, since it uses less digits than its factorization.

84685964512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646436401 (or 2646436393 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 58.

The spelling of 84685964512 in words is "eighty-four billion, six hundred eighty-five million, nine hundred sixty-four thousand, five hundred twelve".