172712836388 has 24 divisors (see below), whose sum is σ = 315470574720. Its totient is φ = 82580336960.

The previous prime is 172712836379. The next prime is 172712836391. The reversal of 172712836388 is 883638217271.

172712836388 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 7 ways as a sum of consecutive naturals, for example, 115193 + ... + 598911.

It is an arithmetic number, because the mean of its divisors is an integer number (13144607280).

Almost surely, 2^172712836388 is an apocalyptic number.

It is an amenable number.

172712836388 is a deficient number, since it is larger than the sum of its proper divisors (142757738332).

172712836388 is a wasteful number, since it uses less digits than its factorization.

172712836388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487627 (or 487625 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 56.

The spelling of 172712836388 in words is "one hundred seventy-two billion, seven hundred twelve million, eight hundred thirty-six thousand, three hundred eighty-eight".