538116727611834 has 192 divisors, whose sum is σ = 1347853428979200. Its totient is φ = 151981245997056.

The previous prime is 538116727611833. The next prime is 538116727611871. The reversal of 538116727611834 is 438116727611835.

It is a happy number.

538116727611834 is a `hidden beast` number, since 5 + 3 + 8 + 1 + 1 + 6 + 7 + 2 + 7 + 611 + 8 + 3 + 4 = 666.

It is a super-2 number, since 2×538116727611834² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (538116727611833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17707600312 + ... + 17707630700.

It is an arithmetic number, because the mean of its divisors is an integer number (7020069942600).

Almost surely, 2^{538116727611834} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538116727611834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (673926714489600).

538116727611834 is an abundant number, since it is smaller than the sum of its proper divisors (809736701367366).

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

538116727611834 is a wasteful number, since it uses less digits than its factorization.

538116727611834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33789 (or 33786 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

Subtracting from 538116727611834 its reverse (438116727611835), we obtain a palindrome (99999999999999).

The spelling of 538116727611834 in words is "five hundred thirty-eight trillion, one hundred sixteen billion, seven hundred twenty-seven million, six hundred eleven thousand, eight hundred thirty-four".