50644425668 has 6 divisors (see below), whose sum is σ = 88627744926. Its totient is φ = 25322212832.

The previous prime is 50644425661. The next prime is 50644425683. The reversal of 50644425668 is 86652444605.

50644425668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 25705067584 + 24939358084 = 160328^2 + 157922^2 .

It is not an unprimeable number, because it can be changed into a prime (50644425661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6330553205 + ... + 6330553212.

It is an arithmetic number, because the mean of its divisors is an integer number (14771290821).

Almost surely, 2^50644425668 is an apocalyptic number.

It is an amenable number.

50644425668 is a deficient number, since it is larger than the sum of its proper divisors (37983319258).

50644425668 is a wasteful number, since it uses less digits than its factorization.

50644425668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12661106421 (or 12661106419 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 50.

The spelling of 50644425668 in words is "fifty billion, six hundred forty-four million, four hundred twenty-five thousand, six hundred sixty-eight".