506384145520 has 80 divisors (see below), whose sum is σ = 1308607931232. Its totient is φ = 180665338880.

The previous prime is 506384145479. The next prime is 506384145523. The reversal of 506384145520 is 25541483605.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506384145523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5382007 + ... + 5475286.

Almost surely, 2^506384145520 is an apocalyptic number.

It is an amenable number.

506384145520 is an abundant number, since it is smaller than the sum of its proper divisors (802223785712).

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

506384145520 is a wasteful number, since it uses less digits than its factorization.

506384145520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10857370 (or 10857364 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 506384145520 in words is "five hundred six billion, three hundred eighty-four million, one hundred forty-five thousand, five hundred twenty".