172204076863 has 16 divisors (see below), whose sum is σ = 216452920320. Its totient is φ = 133350453216.

The previous prime is 172204076813. The next prime is 172204076867. The reversal of 172204076863 is 368670402271.

172204076863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 172204076863 - 2¹³ = 172204068671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172204076867) 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 15 ways as a sum of consecutive naturals, for example, 20127133 + ... + 20135686.

It is an arithmetic number, because the mean of its divisors is an integer number (13528307520).

Almost surely, 2^172204076863 is an apocalyptic number.

172204076863 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

172204076863 is a deficient number, since it is larger than the sum of its proper divisors (44248843457).

172204076863 is a wasteful number, since it uses less digits than its factorization.

172204076863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40262886.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 172204076863 in words is "one hundred seventy-two billion, two hundred four million, seventy-six thousand, eight hundred sixty-three".