501000388806 has 32 divisors (see below), whose sum is σ = 1007265093120. Its totient is φ = 166125004416.

The previous prime is 501000388793. The next prime is 501000388873. The reversal of 501000388806 is 608883000105.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 605455 + ... + 1169861.

It is an arithmetic number, because the mean of its divisors is an integer number (31477034160).

Almost surely, 2^501000388806 is an apocalyptic number.

501000388806 is an abundant number, since it is smaller than the sum of its proper divisors (506264704314).

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

501000388806 is a wasteful number, since it uses less digits than its factorization.

501000388806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565188.

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 501000388806 in words is "five hundred one billion, three hundred eighty-eight thousand, eight hundred six".