538557170017 has 4 divisors (see below), whose sum is σ = 539352676116. Its totient is φ = 537761663920.

The previous prime is 538557169987. The next prime is 538557170033. The reversal of 538557170017 is 710071755835.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 326039858001 + 212517312016 = 570999^2 + 460996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538557170017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538557170077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397752034 + ... + 397753387.

It is an arithmetic number, because the mean of its divisors is an integer number (134838169029).

Almost surely, 2^538557170017 is an apocalyptic number.

It is an amenable number.

538557170017 is a deficient number, since it is larger than the sum of its proper divisors (795506099).

538557170017 is an equidigital number, since it uses as much as digits as its factorization.

538557170017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795506098.

The product of its (nonzero) digits is 1029000, while the sum is 49.

The spelling of 538557170017 in words is "five hundred thirty-eight billion, five hundred fifty-seven million, one hundred seventy thousand, seventeen".