501009082920 has 160 divisors (see below), whose sum is σ = 1738268421120. Its totient is φ = 129292640640.

The previous prime is 501009082853. The next prime is 501009082991. The reversal of 501009082920 is 29280900105.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2393632 + ... + 2594511.

It is an arithmetic number, because the mean of its divisors is an integer number (10864177632).

Almost surely, 2^501009082920 is an apocalyptic number.

It is an amenable number.

501009082920 is an abundant number, since it is smaller than the sum of its proper divisors (1237259338200).

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

501009082920 is a wasteful number, since it uses less digits than its factorization.

501009082920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988197 (or 4988184 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 501009082920 in words is "five hundred one billion, nine million, eighty-two thousand, nine hundred twenty".