500401870561650 has 96 divisors (see below), whose sum is σ = 1249376141059200. Its totient is φ = 132539549739520.

The previous prime is 500401870561613. The next prime is 500401870561673. The reversal of 500401870561650 is 56165078104005.

It is a self number, because there is not a number n which added to its sum of digits gives 500401870561650.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 566511142 + ... + 567393758.

It is an arithmetic number, because the mean of its divisors is an integer number (13014334802700).

Almost surely, 2^{500401870561650} is an apocalyptic number.

500401870561650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 500401870561650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624688070529600).

500401870561650 is an abundant number, since it is smaller than the sum of its proper divisors (748974270497550).

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

500401870561650 is a wasteful number, since it uses less digits than its factorization.

500401870561650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908148 (or 908143 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 48.

The spelling of 500401870561650 in words is "five hundred trillion, four hundred one billion, eight hundred seventy million, five hundred sixty-one thousand, six hundred fifty".