50643782144 has 20 divisors (see below), whose sum is σ = 101188651674. Its totient is φ = 25321890816.

The previous prime is 50643782143. The next prime is 50643782149. The reversal of 50643782144 is 44128734605.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 29008902400 + 21634879744 = 170320^2 + 147088^2 .

It is a junction number, because it is equal to n+sod(n) for n = 50643782095 and 50643782104.

It is not an unprimeable number, because it can be changed into a prime (50643782143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49456307 + ... + 49457330.

Almost surely, 2^50643782144 is an apocalyptic number.

It is an amenable number.

50643782144 is a deficient number, since it is larger than the sum of its proper divisors (50544869530).

50643782144 is an frugal number, since it uses more digits than its factorization.

50643782144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98913655 (or 98913639 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 50643782144 in words is "fifty billion, six hundred forty-three million, seven hundred eighty-two thousand, one hundred forty-four".