42172933176893 has 2 divisors, whose sum is σ = 42172933176894. Its totient is φ = 42172933176892.

The previous prime is 42172933176863. The next prime is 42172933176919. The reversal of 42172933176893 is 39867133927124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39291810549124 + 2881122627769 = 6268318^2 + 1697387^2 .

It is a cyclic number.

It is not a de Polignac number, because 42172933176893 - 2¹⁴ = 42172933160509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42172933176863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21086466588446 + 21086466588447.

It is an arithmetic number, because the mean of its divisors is an integer number (21086466588447).

Almost surely, 2^{42172933176893} is an apocalyptic number.

It is an amenable number.

42172933176893 is a deficient number, since it is larger than the sum of its proper divisors (1).

42172933176893 is an equidigital number, since it uses as much as digits as its factorization.

42172933176893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82301184, while the sum is 65.

The spelling of 42172933176893 in words is "forty-two trillion, one hundred seventy-two billion, nine hundred thirty-three million, one hundred seventy-six thousand, eight hundred ninety-three".