539569207920 has 160 divisors (see below), whose sum is σ = 1752393553920. Its totient is φ = 137165276160.

The previous prime is 539569207913. The next prime is 539569207921. The reversal of 539569207920 is 29702965935.

539569207920 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×539569207920² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539569207921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42735 + ... + 1039694.

It is an arithmetic number, because the mean of its divisors is an integer number (10952459712).

Almost surely, 2^539569207920 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 539569207920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (876196776960).

539569207920 is an abundant number, since it is smaller than the sum of its proper divisors (1212824346000).

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

539569207920 is a wasteful number, since it uses less digits than its factorization.

539569207920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082543 (or 1082537 counting only the distinct ones).

The product of its (nonzero) digits is 9185400, while the sum is 57.

The spelling of 539569207920 in words is "five hundred thirty-nine billion, five hundred sixty-nine million, two hundred seven thousand, nine hundred twenty".