168705772812 has 96 divisors (see below), whose sum is σ = 439207641600. Its totient is φ = 56001326400.

The previous prime is 168705772811. The next prime is 168705772849. The reversal of 168705772812 is 218277507861.

168705772812 is a `hidden beast` number, since 1 + 68 + 7 + 0 + 577 + 2 + 8 + 1 + 2 = 666.

168705772812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (168705772811) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 53033862 + ... + 53037042.

It is an arithmetic number, because the mean of its divisors is an integer number (4575079600).

Almost surely, 2^168705772812 is an apocalyptic number.

168705772812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168705772812 is an abundant number, since it is smaller than the sum of its proper divisors (270501868788).

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

168705772812 is a wasteful number, since it uses less digits than its factorization.

168705772812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084 (or 5076 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 54.

The spelling of 168705772812 in words is "one hundred sixty-eight billion, seven hundred five million, seven hundred seventy-two thousand, eight hundred twelve".