502556640690 has 64 divisors (see below), whose sum is σ = 1367279625600. Its totient is φ = 117195393024.

The previous prime is 502556640689. The next prime is 502556640713. The reversal of 502556640690 is 96046655205.

It is a super-2 number, since 2×502556640690² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33903295 + ... + 33918114.

It is an arithmetic number, because the mean of its divisors is an integer number (21363744150).

Almost surely, 2^502556640690 is an apocalyptic number.

502556640690 is an abundant number, since it is smaller than the sum of its proper divisors (864722984910).

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

502556640690 is a wasteful number, since it uses less digits than its factorization.

502556640690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67821451.

The product of its (nonzero) digits is 1944000, while the sum is 48.

The spelling of 502556640690 in words is "five hundred two billion, five hundred fifty-six million, six hundred forty thousand, six hundred ninety".