501287680 has 36 divisors (see below), whose sum is σ = 1200743712. Its totient is φ = 200514560.

The previous prime is 501287663. The next prime is 501287711. The reversal of 501287680 is 86782105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194536 + ... + 197095.

It is an arithmetic number, because the mean of its divisors is an integer number (33353992).

Almost surely, 2^501287680 is an apocalyptic number.

It is an amenable number.

501287680 is an abundant number, since it is smaller than the sum of its proper divisors (699456032).

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

501287680 is an equidigital number, since it uses as much as digits as its factorization.

501287680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391652 (or 391638 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 501287680 is about 22389.4546606209. The cubic root of 501287680 is about 794.3812967704.

The spelling of 501287680 in words is "five hundred one million, two hundred eighty-seven thousand, six hundred eighty".