500365121540 has 48 divisors (see below), whose sum is σ = 1055164428864. Its totient is φ = 199308720000.

The previous prime is 500365121461. The next prime is 500365121549. The reversal of 500365121540 is 45121563005.

It is a junction number, because it is equal to n+sod(n) for n = 500365121497 and 500365121506.

It is not an unprimeable number, because it can be changed into a prime (500365121549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49728110 + ... + 49738170.

It is an arithmetic number, because the mean of its divisors is an integer number (21982592268).

Almost surely, 2^500365121540 is an apocalyptic number.

It is an amenable number.

500365121540 is an abundant number, since it is smaller than the sum of its proper divisors (554799307324).

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

500365121540 is a wasteful number, since it uses less digits than its factorization.

500365121540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20228 (or 20226 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 500365121540 its reverse (45121563005), we get a palindrome (545486684545).

The spelling of 500365121540 in words is "five hundred billion, three hundred sixty-five million, one hundred twenty-one thousand, five hundred forty".