538371213122 has 6 divisors (see below), whose sum is σ = 807558376179. Its totient is φ = 269185087730.

The previous prime is 538371213119. The next prime is 538371213167. The reversal of 538371213122 is 221312173835.

It can be written as a sum of positive squares in only one way, i.e., 269185606561 + 269185606561 = 518831^2 + 518831^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=518831.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 778247 + ... + 1297077.

Almost surely, 2^538371213122 is an apocalyptic number.

538371213122 is a deficient number, since it is larger than the sum of its proper divisors (269187163057).

538371213122 is an frugal number, since it uses more digits than its factorization.

538371213122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037664 (or 518833 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

Adding to 538371213122 its reverse (221312173835), we get a palindrome (759683386957).

The spelling of 538371213122 in words is "five hundred thirty-eight billion, three hundred seventy-one million, two hundred thirteen thousand, one hundred twenty-two".