50000130000 has 150 divisors (see below), whose sum is σ = 174857991594. Its totient is φ = 13333344000.

The previous prime is 50000129981. The next prime is 50000130073. The reversal of 50000130000 is 3100005.

It can be written as a sum of positive squares in 5 ways, for example, as 16418834496 + 33581295504 = 128136^2 + 183252^2 .

It is a tau number, because it is divible by the number of its divisors (150).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

50000130000 is a modest number, since divided by 130000 gives 50000 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 187779 + ... + 367778.

Almost surely, 2^50000130000 is an apocalyptic number.

50000130000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

50000130000 is an abundant number, since it is smaller than the sum of its proper divisors (124857861594).

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

50000130000 is a wasteful number, since it uses less digits than its factorization.

50000130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555591 (or 555567 counting only the distinct ones).

The product of its (nonzero) digits is 15, while the sum is 9.

Adding to 50000130000 its reverse (3100005), we get a palindrome (50003230005).

The spelling of 50000130000 in words is "fifty billion, one hundred thirty thousand".