50128855434 has 72 divisors (see below), whose sum is σ = 133777285668. Its totient is φ = 13480024320.

The previous prime is 50128855421. The next prime is 50128855459. The reversal of 50128855434 is 43455882105.

50128855434 is a `hidden beast` number, since 5 + 0 + 1 + 28 + 85 + 543 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 50085097209 + 43758225 = 223797^2 + 6615^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 50128855434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1656637 + ... + 1686624.

Almost surely, 2^50128855434 is an apocalyptic number.

50128855434 is an abundant number, since it is smaller than the sum of its proper divisors (83648430234).

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

50128855434 is a wasteful number, since it uses less digits than its factorization.

50128855434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343300 (or 3343290 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 45.

The spelling of 50128855434 in words is "fifty billion, one hundred twenty-eight million, eight hundred fifty-five thousand, four hundred thirty-four".