50644502728 has 16 divisors (see below), whose sum is σ = 97524887580. Its totient is φ = 24637866048.

The previous prime is 50644502683. The next prime is 50644502731. The reversal of 50644502728 is 82720544605.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50508966564 + 135536164 = 224742^2 + 11642^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85547851 + ... + 85548442.

Almost surely, 2^50644502728 is an apocalyptic number.

It is an amenable number.

50644502728 is a deficient number, since it is larger than the sum of its proper divisors (46880384852).

50644502728 is a wasteful number, since it uses less digits than its factorization.

50644502728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171096336 (or 171096332 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 43.

The spelling of 50644502728 in words is "fifty billion, six hundred forty-four million, five hundred two thousand, seven hundred twenty-eight".