538122221835 has 16 divisors (see below), whose sum is σ = 939267878400. Its totient is φ = 260907743840.

The previous prime is 538122221809. The next prime is 538122221837.

538122221835 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 538122221835 - 2¹⁵ = 538122189067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (538122221837) 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, 1630673235 + ... + 1630673564.

It is an arithmetic number, because the mean of its divisors is an integer number (58704242400).

Almost surely, 2^538122221835 is an apocalyptic number.

538122221835 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

538122221835 is a deficient number, since it is larger than the sum of its proper divisors (401145656565).

538122221835 is a wasteful number, since it uses less digits than its factorization.

538122221835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261346818.

The product of its digits is 230400, while the sum is 42.

It can be divided in two parts, 538122 and 221835, that added together give a palindrome (759957).

The spelling of 538122221835 in words is "five hundred thirty-eight billion, one hundred twenty-two million, two hundred twenty-one thousand, eight hundred thirty-five".