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80627642899 is a prime number
BaseRepresentation
bin100101100010111001…
…0000011001000010011
321201010002010122012021
41023011302003020103
52310111134033044
6101012334112311
75553012441166
oct1130562031023
9251102118167
1080627642899
1131215225521
121376204b697
1377ac18b84b
143c8c279add
15216d64be84
hex12c5c83213

80627642899 has 2 divisors, whose sum is σ = 80627642900. Its totient is φ = 80627642898.

The previous prime is 80627642897. The next prime is 80627642923. The reversal of 80627642899 is 99824672608.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80627642899 - 21 = 80627642897 is a prime.

Together with 80627642897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (80627642897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40313821449 + 40313821450.

It is an arithmetic number, because the mean of its divisors is an integer number (40313821450).

Almost surely, 280627642899 is an apocalyptic number.

80627642899 is a deficient number, since it is larger than the sum of its proper divisors (1).

80627642899 is an equidigital number, since it uses as much as digits as its factorization.

80627642899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 80627642899 in words is "eighty billion, six hundred twenty-seven million, six hundred forty-two thousand, eight hundred ninety-nine".