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12488142817 is a prime number
BaseRepresentation
bin10111010000101100…
…11110111111100001
31012020022122101102001
423220112132333201
5201033431032232
65423104124001
7621316314433
oct135026367741
935208571361
1012488142817
11532925a597
122506306601
131240327927
148667a8653
154d15456e7
hex2e859efe1

12488142817 has 2 divisors, whose sum is σ = 12488142818. Its totient is φ = 12488142816.

The previous prime is 12488142781. The next prime is 12488142839. The reversal of 12488142817 is 71824188421.

Together with previous prime (12488142781) 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., 6772631616 + 5715511201 = 82296^2 + 75601^2 .

It is a cyclic number.

It is not a de Polignac number, because 12488142817 - 215 = 12488110049 is a prime.

It is a super-2 number, since 2×124881428172 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12488142847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6244071408 + 6244071409.

It is an arithmetic number, because the mean of its divisors is an integer number (6244071409).

Almost surely, 212488142817 is an apocalyptic number.

It is an amenable number.

12488142817 is a deficient number, since it is larger than the sum of its proper divisors (1).

12488142817 is an equidigital number, since it uses as much as digits as its factorization.

12488142817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 229376, while the sum is 46.

The spelling of 12488142817 in words is "twelve billion, four hundred eighty-eight million, one hundred forty-two thousand, eight hundred seventeen".