50638581792 has 72 divisors (see below), whose sum is σ = 144216730476. Its totient is φ = 16854529536.

The previous prime is 50638581737. The next prime is 50638581811. The reversal of 50638581792 is 29718583605.

50638581792 is a `hidden beast` number, since 50 + 6 + 3 + 8 + 581 + 7 + 9 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 43013100816 + 7625480976 = 207396^2 + 87324^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65118 + ... + 324834.

Almost surely, 2^50638581792 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 50638581792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72108365238).

50638581792 is an abundant number, since it is smaller than the sum of its proper divisors (93578148684).

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

50638581792 is a wasteful number, since it uses less digits than its factorization.

50638581792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260410 (or 260399 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 50638581792 in words is "fifty billion, six hundred thirty-eight million, five hundred eighty-one thousand, seven hundred ninety-two".