538162173231 has 16 divisors (see below), whose sum is σ = 718169794560. Its totient is φ = 358464798560.

The previous prime is 538162173203. The next prime is 538162173239. The reversal of 538162173231 is 132371261835.

It is a cyclic number.

It is not a de Polignac number, because 538162173231 - 2⁶ = 538162173167 is a prime.

It is a super-2 number, since 2×538162173231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538162173239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19570750 + ... + 19598228.

It is an arithmetic number, because the mean of its divisors is an integer number (44885612160).

Almost surely, 2^538162173231 is an apocalyptic number.

538162173231 is a deficient number, since it is larger than the sum of its proper divisors (180007621329).

538162173231 is a wasteful number, since it uses less digits than its factorization.

538162173231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32886.

The product of its digits is 181440, while the sum is 42.

The spelling of 538162173231 in words is "five hundred thirty-eight billion, one hundred sixty-two million, one hundred seventy-three thousand, two hundred thirty-one".