538218812835 has 128 divisors (see below), whose sum is σ = 1067951001600. Its totient is φ = 254989762560.

The previous prime is 538218812821. The next prime is 538218812851.

538218812835 is a `hidden beast` number, since 5 + 382 + 188 + 1 + 2 + 83 + 5 = 666.

538218812835 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 538218812835 - 2⁷ = 538218812707 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11355907 + ... + 11403203.

It is an arithmetic number, because the mean of its divisors is an integer number (8343367200).

Almost surely, 2^538218812835 is an apocalyptic number.

538218812835 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

538218812835 is a deficient number, since it is larger than the sum of its proper divisors (529732188765).

538218812835 is a wasteful number, since it uses less digits than its factorization.

538218812835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47498 (or 47492 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 54.

The spelling of 538218812835 in words is "five hundred thirty-eight billion, two hundred eighteen million, eight hundred twelve thousand, eight hundred thirty-five".