172642280211 has 6 divisors (see below), whose sum is σ = 249372182540. Its totient is φ = 115094853468.

The previous prime is 172642280171. The next prime is 172642280269. The reversal of 172642280211 is 112082246271.

172642280211 is a `hidden beast` number, since 1 + 7 + 2 + 642 + 2 + 8 + 0 + 2 + 1 + 1 = 666.

It is not a de Polignac number, because 172642280211 - 2¹¹ = 172642278163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172642280711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9591237781 + ... + 9591237798.

Almost surely, 2^172642280211 is an apocalyptic number.

172642280211 is a deficient number, since it is larger than the sum of its proper divisors (76729902329).

172642280211 is a wasteful number, since it uses less digits than its factorization.

172642280211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19182475585 (or 19182475582 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 172642280211 in words is "one hundred seventy-two billion, six hundred forty-two million, two hundred eighty thousand, two hundred eleven".