172083405673 has 2 divisors, whose sum is σ = 172083405674. Its totient is φ = 172083405672.

The previous prime is 172083405643. The next prime is 172083405677. The reversal of 172083405673 is 376504380271.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156204381529 + 15879024144 = 395227^2 + 126012^2 .

It is a cyclic number.

It is not a de Polignac number, because 172083405673 - 2³³ = 163493471081 is a prime.

It is a super-2 number, since 2×172083405673² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (172083405677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86041702836 + 86041702837.

It is an arithmetic number, because the mean of its divisors is an integer number (86041702837).

Almost surely, 2^172083405673 is an apocalyptic number.

It is an amenable number.

172083405673 is a deficient number, since it is larger than the sum of its proper divisors (1).

172083405673 is an equidigital number, since it uses as much as digits as its factorization.

172083405673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 172083405673 in words is "one hundred seventy-two billion, eighty-three million, four hundred five thousand, six hundred seventy-three".