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12886580687 is a prime number
BaseRepresentation
bin11000000000001100…
…11001110111001111
31020021002101010102012
430000012121313033
5202342431040222
65530420051435
7634225062041
oct140006316717
936232333365
1012886580687
115513158892
1225b7833b7b
1312a4a40196
148a3683a91
155064eb1e2
hex300199dcf

12886580687 has 2 divisors, whose sum is σ = 12886580688. Its totient is φ = 12886580686.

The previous prime is 12886580683. The next prime is 12886580701. The reversal of 12886580687 is 78608568821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12886580687 - 22 = 12886580683 is a prime.

It is a super-2 number, since 2×128865806872 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12886580683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6443290343 + 6443290344.

It is an arithmetic number, because the mean of its divisors is an integer number (6443290344).

Almost surely, 212886580687 is an apocalyptic number.

12886580687 is a deficient number, since it is larger than the sum of its proper divisors (1).

12886580687 is an equidigital number, since it uses as much as digits as its factorization.

12886580687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10321920, while the sum is 59.

The spelling of 12886580687 in words is "twelve billion, eight hundred eighty-six million, five hundred eighty thousand, six hundred eighty-seven".