64713441751641 has 12 divisors (see below), whose sum is σ = 93476661455268. Its totient is φ = 43141514484384.

The previous prime is 64713441751627. The next prime is 64713441751643. The reversal of 64713441751641 is 14615714431746.

64713441751641 is a `hidden beast` number, since 6 + 4 + 7 + 134 + 417 + 51 + 6 + 41 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38734491479616 + 25978950272025 = 6223704^2 + 5096955^2 .

It is not a de Polignac number, because 64713441751641 - 2¹⁵ = 64713441718873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64713441751643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64475730 + ... + 65471723.

It is an arithmetic number, because the mean of its divisors is an integer number (7789721787939).

Almost surely, 2^{64713441751641} is an apocalyptic number.

It is an amenable number.

64713441751641 is a deficient number, since it is larger than the sum of its proper divisors (28763219703627).

64713441751641 is a wasteful number, since it uses less digits than its factorization.

64713441751641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130002792 (or 130002789 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The spelling of 64713441751641 in words is "sixty-four trillion, seven hundred thirteen billion, four hundred forty-one million, seven hundred fifty-one thousand, six hundred forty-one".