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127717948859 is a prime number
BaseRepresentation
bin111011011110010010…
…1010011110110111011
3110012122212212000222012
41312330211103312323
54043031243330414
6134401154520135
712140653440014
oct1667445236673
9405585760865
10127717948859
114a18a4a8356
122090459604b
13c075175307
14627839000b
1534c783a33e
hex1dbc953dbb

127717948859 has 2 divisors, whose sum is σ = 127717948860. Its totient is φ = 127717948858.

The previous prime is 127717948783. The next prime is 127717948861. The reversal of 127717948859 is 958849717721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127717948859 - 216 = 127717883323 is a prime.

Together with 127717948861, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (127717948459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63858974429 + 63858974430.

It is an arithmetic number, because the mean of its divisors is an integer number (63858974430).

Almost surely, 2127717948859 is an apocalyptic number.

127717948859 is a deficient number, since it is larger than the sum of its proper divisors (1).

127717948859 is an equidigital number, since it uses as much as digits as its factorization.

127717948859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71124480, while the sum is 68.

The spelling of 127717948859 in words is "one hundred twenty-seven billion, seven hundred seventeen million, nine hundred forty-eight thousand, eight hundred fifty-nine".