172786284812 has 12 divisors (see below), whose sum is σ = 303895477200. Its totient is φ = 85959005616.

The previous prime is 172786284743. The next prime is 172786284821. The reversal of 172786284812 is 218482687271.

It is a happy number.

172786284812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 3 ways as a sum of consecutive naturals, for example, 108533303 + ... + 108534894.

It is an arithmetic number, because the mean of its divisors is an integer number (25324623100).

Almost surely, 2^172786284812 is an apocalyptic number.

It is an amenable number.

172786284812 is a deficient number, since it is larger than the sum of its proper divisors (131109192388).

172786284812 is a wasteful number, since it uses less digits than its factorization.

172786284812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217068400 (or 217068398 counting only the distinct ones).

The product of its digits is 4816896, while the sum is 56.

The spelling of 172786284812 in words is "one hundred seventy-two billion, seven hundred eighty-six million, two hundred eighty-four thousand, eight hundred twelve".