172061647722273 has 8 divisors (see below), whose sum is σ = 231090096211488. Its totient is φ = 113870482190624.

The previous prime is 172061647722269. The next prime is 172061647722281. The reversal of 172061647722273 is 372227746160271.

172061647722273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172061647722273 - 2² = 172061647722269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172061647722073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209320738911 + ... + 209320739732.

It is an arithmetic number, because the mean of its divisors is an integer number (28886262026436).

Almost surely, 2^{172061647722273} is an apocalyptic number.

It is an amenable number.

172061647722273 is a deficient number, since it is larger than the sum of its proper divisors (59028448489215).

172061647722273 is a wasteful number, since it uses less digits than its factorization.

172061647722273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418641478783.

The product of its (nonzero) digits is 16595712, while the sum is 57.

The spelling of 172061647722273 in words is "one hundred seventy-two trillion, sixty-one billion, six hundred forty-seven million, seven hundred twenty-two thousand, two hundred seventy-three".