500005150040 has 128 divisors (see below), whose sum is σ = 1260450720000. Its totient is φ = 176967744000.

The previous prime is 500005150031. The next prime is 500005150097. The reversal of 500005150040 is 40051500005.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 500005149994 and 500005150021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2526611 + ... + 2717309.

It is an arithmetic number, because the mean of its divisors is an integer number (9847271250).

Almost surely, 2^500005150040 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 500005150040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (630225360000).

500005150040 is an abundant number, since it is smaller than the sum of its proper divisors (760445569960).

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

500005150040 is a wasteful number, since it uses less digits than its factorization.

500005150040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190881 (or 190877 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

Adding to 500005150040 its reverse (40051500005), we get a palindrome (540056650045).

The spelling of 500005150040 in words is "five hundred billion, five million, one hundred fifty thousand, forty".