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12188568787607 is a prime number
BaseRepresentation
bin1011000101011101111101…
…0100000001101010010111
31121011012211022112000212002
42301113133110001222113
53044144142102200412
641531203505345515
72365411045163462
oct261273724015227
947135738460762
1012188568787607
11397a163363a33
12144a28703829b
136a54b9665054
14301d038222d9
151620bca28dc2
hexb15df501a97

12188568787607 has 2 divisors, whose sum is σ = 12188568787608. Its totient is φ = 12188568787606.

The previous prime is 12188568787589. The next prime is 12188568787609. The reversal of 12188568787607 is 70678786588121.

It is a strong prime.

It is an emirp because it is prime and its reverse (70678786588121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12188568787607 - 230 = 12187495045783 is a prime.

It is a super-2 number, since 2×121885687876072 (a number of 27 digits) contains 22 as substring.

Together with 12188568787609, 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 (12188568787609) 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, 6094284393803 + 6094284393804.

It is an arithmetic number, because the mean of its divisors is an integer number (6094284393804).

Almost surely, 212188568787607 is an apocalyptic number.

12188568787607 is a deficient number, since it is larger than the sum of its proper divisors (1).

12188568787607 is an equidigital number, since it uses as much as digits as its factorization.

12188568787607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 505774080, while the sum is 74.

The spelling of 12188568787607 in words is "twelve trillion, one hundred eighty-eight billion, five hundred sixty-eight million, seven hundred eighty-seven thousand, six hundred seven".