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8285427660673 is a prime number
BaseRepresentation
bin111100010010001100111…
…1110001111011110000001
31002100002010200212220002001
41320210121332033132001
52041222023440120143
625342134541224001
71513413423050362
oct170443176173601
932302120786061
108285427660673
112704914a06299
12b19930b62001
1348140a681577
142090342c1b69
15e57ca13914d
hex78919f8f781

8285427660673 has 2 divisors, whose sum is σ = 8285427660674. Its totient is φ = 8285427660672.

The previous prime is 8285427660637. The next prime is 8285427660707. The reversal of 8285427660673 is 3760667245828.

It is a happy number.

Together with previous prime (8285427660637) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8143763497984 + 141664162689 = 2853728^2 + 376383^2 .

It is a cyclic number.

It is not a de Polignac number, because 8285427660673 - 29 = 8285427660161 is a prime.

It is a super-2 number, since 2×82854276606732 (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8285427664673) 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, 4142713830336 + 4142713830337.

It is an arithmetic number, because the mean of its divisors is an integer number (4142713830337).

Almost surely, 28285427660673 is an apocalyptic number.

It is an amenable number.

8285427660673 is a deficient number, since it is larger than the sum of its proper divisors (1).

8285427660673 is an equidigital number, since it uses as much as digits as its factorization.

8285427660673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162570240, while the sum is 64.

The spelling of 8285427660673 in words is "eight trillion, two hundred eighty-five billion, four hundred twenty-seven million, six hundred sixty thousand, six hundred seventy-three".