172273614481 has 2 divisors, whose sum is σ = 172273614482. Its totient is φ = 172273614480.

The previous prime is 172273614463. The next prime is 172273614503. The reversal of 172273614481 is 184416372271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161918516881 + 10355097600 = 402391^2 + 101760^2 .

It is an emirp because it is prime and its reverse (184416372271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172273614481 - 2⁵ = 172273614449 is a prime.

It is a super-2 number, since 2×172273614481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (172073614481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86136807240 + 86136807241.

It is an arithmetic number, because the mean of its divisors is an integer number (86136807241).

Almost surely, 2^172273614481 is an apocalyptic number.

It is an amenable number.

172273614481 is a deficient number, since it is larger than the sum of its proper divisors (1).

172273614481 is an equidigital number, since it uses as much as digits as its factorization.

172273614481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 46.

The spelling of 172273614481 in words is "one hundred seventy-two billion, two hundred seventy-three million, six hundred fourteen thousand, four hundred eighty-one".