51966944508 has 24 divisors (see below), whose sum is σ = 121313648848. Its totient is φ = 17314108416.

The previous prime is 51966944507. The next prime is 51966944567. The reversal of 51966944508 is 80544966915.

51966944508 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51966944501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999391 + ... + 1050102.

Almost surely, 2^51966944508 is an apocalyptic number.

It is an amenable number.

51966944508 is an abundant number, since it is smaller than the sum of its proper divisors (69346704340).

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

51966944508 is a wasteful number, since it uses less digits than its factorization.

51966944508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051613 (or 2051611 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 57.

The spelling of 51966944508 in words is "fifty-one billion, nine hundred sixty-six million, nine hundred forty-four thousand, five hundred eight".