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80351518927 is a prime number
BaseRepresentation
bin100101011010101010…
…0101110000011001111
321200101211120002022111
41022311110232003033
52304024442101202
6100525111524451
75543120433061
oct1126524560317
9250354502274
1080351518927
1131093379499
12136a5689727
137766c00494
143c6371d731
1521542a76d7
hex12b552e0cf

80351518927 has 2 divisors, whose sum is σ = 80351518928. Its totient is φ = 80351518926.

The previous prime is 80351518921. The next prime is 80351518939. The reversal of 80351518927 is 72981515308.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80351518927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80351518921) 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, 40175759463 + 40175759464.

It is an arithmetic number, because the mean of its divisors is an integer number (40175759464).

Almost surely, 280351518927 is an apocalyptic number.

80351518927 is a deficient number, since it is larger than the sum of its proper divisors (1).

80351518927 is an equidigital number, since it uses as much as digits as its factorization.

80351518927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 49.

The spelling of 80351518927 in words is "eighty billion, three hundred fifty-one million, five hundred eighteen thousand, nine hundred twenty-seven".