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12650895769 is a prime number
BaseRepresentation
bin10111100100000110…
…10101100110011001
31012122122220002111011
423302003111212121
5201402112131034
65451200333521
7625333561021
oct136203254631
935578802434
1012650895769
115402112266
1225509142a1
131267c70455
14880252a81
154e0993864
hex2f20d5999

12650895769 has 2 divisors, whose sum is σ = 12650895770. Its totient is φ = 12650895768.

The previous prime is 12650895767. The next prime is 12650895779. The reversal of 12650895769 is 96759805621.

12650895769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12273759369 + 377136400 = 110787^2 + 19420^2 .

It is a cyclic number.

It is not a de Polignac number, because 12650895769 - 21 = 12650895767 is a prime.

It is a super-2 number, since 2×126508957692 (a number of 21 digits) contains 22 as substring.

Together with 12650895767, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12650895767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6325447884 + 6325447885.

It is an arithmetic number, because the mean of its divisors is an integer number (6325447885).

Almost surely, 212650895769 is an apocalyptic number.

It is an amenable number.

12650895769 is a deficient number, since it is larger than the sum of its proper divisors (1).

12650895769 is an equidigital number, since it uses as much as digits as its factorization.

12650895769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8164800, while the sum is 58.

The spelling of 12650895769 in words is "twelve billion, six hundred fifty million, eight hundred ninety-five thousand, seven hundred sixty-nine".