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64848606917 is a prime number
BaseRepresentation
bin111100011001010001…
…110011011011000101
320012101102002120001012
4330121101303123011
52030302220410132
645442510412005
74454003030633
oct743121633305
9205342076035
1064848606917
1125558391216
1210699801005
13616611ca73
1431d27c6353
151a482520b2
hexf194736c5

64848606917 has 2 divisors, whose sum is σ = 64848606918. Its totient is φ = 64848606916.

The previous prime is 64848606863. The next prime is 64848606919. The reversal of 64848606917 is 71960684846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55156401316 + 9692205601 = 234854^2 + 98449^2 .

It is a cyclic number.

It is not a de Polignac number, because 64848606917 - 210 = 64848605893 is a prime.

Together with 64848606919, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64848606919) by changing a digit.

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 as a sum of consecutive naturals, namely, 32424303458 + 32424303459.

It is an arithmetic number, because the mean of its divisors is an integer number (32424303459).

Almost surely, 264848606917 is an apocalyptic number.

It is an amenable number.

64848606917 is a deficient number, since it is larger than the sum of its proper divisors (1).

64848606917 is an equidigital number, since it uses as much as digits as its factorization.

64848606917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13934592, while the sum is 59.

The spelling of 64848606917 in words is "sixty-four billion, eight hundred forty-eight million, six hundred six thousand, nine hundred seventeen".