520319319084 has 96 divisors (see below), whose sum is σ = 1398271508480. Its totient is φ = 167148230400.

The previous prime is 520319319071. The next prime is 520319319089. The reversal of 520319319084 is 480913913025.

It is a happy number.

520319319084 is a `hidden beast` number, since 520 + 3 + 1 + 9 + 31 + 90 + 8 + 4 = 666.

520319319084 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (520319319089) 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, 484437 + ... + 1129299.

Almost surely, 2^520319319084 is an apocalyptic number.

520319319084 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520319319084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699135754240).

520319319084 is an abundant number, since it is smaller than the sum of its proper divisors (877952189396).

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

520319319084 is a wasteful number, since it uses less digits than its factorization.

520319319084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645148 (or 645140 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 520319319084 in words is "five hundred twenty billion, three hundred nineteen million, three hundred nineteen thousand, eighty-four".