520084371820 has 48 divisors (see below), whose sum is σ = 1214132467968. Its totient is φ = 185836596480.

The previous prime is 520084371817. The next prime is 520084371871. The reversal of 520084371820 is 28173480025.

It is a happy number.

It is a super-2 number, since 2×520084371820² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32255239 + ... + 32271358.

It is an arithmetic number, because the mean of its divisors is an integer number (25294426416).

Almost surely, 2^520084371820 is an apocalyptic number.

It is an amenable number.

520084371820 is an abundant number, since it is smaller than the sum of its proper divisors (694048096148).

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

520084371820 is a wasteful number, since it uses less digits than its factorization.

520084371820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64526650 (or 64526648 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 520084371820 in words is "five hundred twenty billion, eighty-four million, three hundred seventy-one thousand, eight hundred twenty".