50644443729 has 16 divisors (see below), whose sum is σ = 73668576960. Its totient is φ = 30691964160.

The previous prime is 50644443709. The next prime is 50644443737. The reversal of 50644443729 is 92734444605.

It is not a de Polignac number, because 50644443729 - 2¹⁵ = 50644410961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50644443709) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 931117 + ... + 984005.

It is an arithmetic number, because the mean of its divisors is an integer number (4604286060).

Almost surely, 2^50644443729 is an apocalyptic number.

It is an amenable number.

50644443729 is a deficient number, since it is larger than the sum of its proper divisors (23024133231).

50644443729 is a wasteful number, since it uses less digits than its factorization.

50644443729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81920.

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 50644443729 in words is "fifty billion, six hundred forty-four million, four hundred forty-three thousand, seven hundred twenty-nine".