50131049856 has 32 divisors (see below), whose sum is σ = 133160602200. Its totient is φ = 16710349824.

The previous prime is 50131049827. The next prime is 50131049863. The reversal of 50131049856 is 65894013105.

It is a tau number, because it is divible by the number of its divisors (32).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65274421 + ... + 65275188.

Almost surely, 2^50131049856 is an apocalyptic number.

It is an amenable number.

50131049856 is an abundant number, since it is smaller than the sum of its proper divisors (83029552344).

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

50131049856 is a wasteful number, since it uses less digits than its factorization.

50131049856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130549626 (or 130549614 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 50131049856 in words is "fifty billion, one hundred thirty-one million, forty-nine thousand, eight hundred fifty-six".