500491901280 has 192 divisors, whose sum is σ = 1802756487168. Its totient is φ = 114335569920.

The previous prime is 500491901243. The next prime is 500491901293. The reversal of 500491901280 is 82109194005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6246754 + ... + 6326366.

It is an arithmetic number, because the mean of its divisors is an integer number (9389356704).

Almost surely, 2^500491901280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 500491901280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (901378243584).

500491901280 is an abundant number, since it is smaller than the sum of its proper divisors (1302264585888).

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

500491901280 is a wasteful number, since it uses less digits than its factorization.

500491901280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81509 (or 81501 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The spelling of 500491901280 in words is "five hundred billion, four hundred ninety-one million, nine hundred one thousand, two hundred eighty".