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80425071871 is a prime number
BaseRepresentation
bin100101011100110110…
…1010011010011111111
321200120221221221222121
41022321231103103333
52304202304244441
6100540300223411
75545002555124
oct1127155232377
9250527857877
1080425071871
1131120946951
121370623ab67
137779214231
143c6d3c874b
15215a985dd1
hex12b9b534ff

80425071871 has 2 divisors, whose sum is σ = 80425071872. Its totient is φ = 80425071870.

The previous prime is 80425071841. The next prime is 80425071907. The reversal of 80425071871 is 17817052408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80425071871 - 219 = 80424547583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80425071841) 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, 40212535935 + 40212535936.

It is an arithmetic number, because the mean of its divisors is an integer number (40212535936).

Almost surely, 280425071871 is an apocalyptic number.

80425071871 is a deficient number, since it is larger than the sum of its proper divisors (1).

80425071871 is an equidigital number, since it uses as much as digits as its factorization.

80425071871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125440, while the sum is 43.

The spelling of 80425071871 in words is "eighty billion, four hundred twenty-five million, seventy-one thousand, eight hundred seventy-one".