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64741702717 is a prime number
BaseRepresentation
bin111100010010111001…
…111111110000111101
320012002221221021001101
4330102321333300331
52030042333441332
645424131213101
74451234251606
oct742271776075
9205087837041
1064741702717
112550300453a
1210669a47191
136149c2c843
1431c2518dad
151a3db86ae7
hexf12e7fc3d

64741702717 has 2 divisors, whose sum is σ = 64741702718. Its totient is φ = 64741702716.

The previous prime is 64741702709. The next prime is 64741702723. The reversal of 64741702717 is 71720714746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47100284676 + 17641418041 = 217026^2 + 132821^2 .

It is a cyclic number.

It is not a de Polignac number, because 64741702717 - 23 = 64741702709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64741702747) by changing a digit.

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 as a sum of consecutive naturals, namely, 32370851358 + 32370851359.

It is an arithmetic number, because the mean of its divisors is an integer number (32370851359).

Almost surely, 264741702717 is an apocalyptic number.

It is an amenable number.

64741702717 is a deficient number, since it is larger than the sum of its proper divisors (1).

64741702717 is an equidigital number, since it uses as much as digits as its factorization.

64741702717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 460992, while the sum is 46.

The spelling of 64741702717 in words is "sixty-four billion, seven hundred forty-one million, seven hundred two thousand, seven hundred seventeen".