538724291256 has 192 divisors, whose sum is σ = 1581748197120. Its totient is φ = 171454060800.

The previous prime is 538724291243. The next prime is 538724291263. The reversal of 538724291256 is 652192427835.

538724291256 is a `hidden beast` number, since 5 + 3 + 87 + 24 + 291 + 256 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25162156 + ... + 25183556.

It is an arithmetic number, because the mean of its divisors is an integer number (8238271860).

Almost surely, 2^538724291256 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 538724291256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (790874098560).

538724291256 is an abundant number, since it is smaller than the sum of its proper divisors (1043023905864).

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

538724291256 is a wasteful number, since it uses less digits than its factorization.

538724291256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22008 (or 21992 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 538724291256 in words is "five hundred thirty-eight billion, seven hundred twenty-four million, two hundred ninety-one thousand, two hundred fifty-six".