6538534358356 has 144 divisors (see below), whose sum is σ = 15506546046208. Its totient is φ = 2347436298240.

The previous prime is 6538534358299. The next prime is 6538534358359.

6538534358356 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6538534358359) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25284745 + ... + 25542031.

Almost surely, 2^{6538534358356} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6538534358356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7753273023104).

6538534358356 is an abundant number, since it is smaller than the sum of its proper divisors (8968011687852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6538534358356 is a wasteful number, since it uses less digits than its factorization.

6538534358356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257910 (or 257897 counting only the distinct ones).

The product of its digits is 466560000, while the sum is 64.

The spelling of 6538534358356 in words is "six trillion, five hundred thirty-eight billion, five hundred thirty-four million, three hundred fifty-eight thousand, three hundred fifty-six".