42593117161 has 9 divisors (see below), whose sum is σ = 49548776061. Its totient is φ = 36507147852.

The previous prime is 42593117159. The next prime is 42593117167. The reversal of 42593117161 is 16171139524.

The square root of 42593117161 is 206381.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 42593117161 - 2¹ = 42593117159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42593117167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1429926 + ... + 1459408.

Almost surely, 2^42593117161 is an apocalyptic number.

42593117161 is the 206381-st square number.

42593117161 is the 103191-st centered octagonal number.

It is an amenable number.

42593117161 is a deficient number, since it is larger than the sum of its proper divisors (6955658900).

42593117161 is an frugal number, since it uses more digits than its factorization.

42593117161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58980 (or 29490 counting only the distinct ones).

The product of its digits is 45360, while the sum is 40.

The spelling of 42593117161 in words is "forty-two billion, five hundred ninety-three million, one hundred seventeen thousand, one hundred sixty-one".