51568932444 has 12 divisors (see below), whose sum is σ = 120327509064. Its totient is φ = 17189644144.

The previous prime is 51568932427. The next prime is 51568932451. The reversal of 51568932444 is 44423986515.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2148705507 + ... + 2148705530.

It is an arithmetic number, because the mean of its divisors is an integer number (10027292422).

Almost surely, 2^51568932444 is an apocalyptic number.

It is an amenable number.

51568932444 is an abundant number, since it is smaller than the sum of its proper divisors (68758576620).

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

51568932444 is a wasteful number, since it uses less digits than its factorization.

51568932444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4297411044 (or 4297411042 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 51.

The spelling of 51568932444 in words is "fifty-one billion, five hundred sixty-eight million, nine hundred thirty-two thousand, four hundred forty-four".