518522020426 has 32 divisors (see below), whose sum is σ = 826686000000. Its totient is φ = 243236538432.

The previous prime is 518522020421. The next prime is 518522020447. The reversal of 518522020426 is 624020225815.

It is a super-2 number, since 2×518522020426² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (518522020421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1555200 + ... + 1858948.

It is an arithmetic number, because the mean of its divisors is an integer number (25833937500).

Almost surely, 2^518522020426 is an apocalyptic number.

518522020426 is a deficient number, since it is larger than the sum of its proper divisors (308163979574).

518522020426 is a wasteful number, since it uses less digits than its factorization.

518522020426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304206.

The product of its (nonzero) digits is 76800, while the sum is 37.

The spelling of 518522020426 in words is "five hundred eighteen billion, five hundred twenty-two million, twenty thousand, four hundred twenty-six".