538868843520 has 1408 divisors, whose sum is σ = 2189363773440. Its totient is φ = 110361968640.

The previous prime is 538868843503. The next prime is 538868843543. The reversal of 538868843520 is 25348868835.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 4243061697 + ... + 4243061823.

Almost surely, 2^538868843520 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 538868843520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1094681886720).

538868843520 is an abundant number, since it is smaller than the sum of its proper divisors (1650494929920).

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

538868843520 is a wasteful number, since it uses less digits than its factorization.

538868843520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 44236800, while the sum is 60.

The spelling of 538868843520 in words is "five hundred thirty-eight billion, eight hundred sixty-eight million, eight hundred forty-three thousand, five hundred twenty".