538355218835 has 16 divisors (see below), whose sum is σ = 770416413696. Its totient is φ = 353107521888.

The previous prime is 538355218831. The next prime is 538355218861. The reversal of 538355218835 is 538812553835.

It is a cyclic number.

It is not a de Polignac number, because 538355218835 - 2² = 538355218831 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538355218831) 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, 334381319 + ... + 334382928.

It is an arithmetic number, because the mean of its divisors is an integer number (48151025856).

Almost surely, 2^538355218835 is an apocalyptic number.

538355218835 is a deficient number, since it is larger than the sum of its proper divisors (232061194861).

538355218835 is a wasteful number, since it uses less digits than its factorization.

538355218835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668764282.

The product of its digits is 17280000, while the sum is 56.

The spelling of 538355218835 in words is "five hundred thirty-eight billion, three hundred fifty-five million, two hundred eighteen thousand, eight hundred thirty-five".