65807728931712 has 192 divisors, whose sum is σ = 192092169466800. Its totient is φ = 19933645111296.

The previous prime is 65807728931699. The next prime is 65807728931753. The reversal of 65807728931712 is 21713982770856.

65807728931712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7005673 + ... + 13442280.

Almost surely, 2^{65807728931712} is an apocalyptic number.

It is an amenable number.

65807728931712 is an abundant number, since it is smaller than the sum of its proper divisors (126284440535088).

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

65807728931712 is a wasteful number, since it uses less digits than its factorization.

65807728931712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20448033 (or 20448004 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 66.

The spelling of 65807728931712 in words is "sixty-five trillion, eight hundred seven billion, seven hundred twenty-eight million, nine hundred thirty-one thousand, seven hundred twelve".