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12690459037 is a prime number
BaseRepresentation
bin10111101000110100…
…10000100110011101
31012202102100010002101
423310122100212131
5201442224142122
65455132325101
7626324056564
oct136432204635
935672303071
1012690459037
115422484783
122562013791
131273213279
148855d0bdb
154e41ab027
hex2f469099d

12690459037 has 2 divisors, whose sum is σ = 12690459038. Its totient is φ = 12690459036.

The previous prime is 12690459029. The next prime is 12690459101. The reversal of 12690459037 is 73095409621.

It is a happy number.

12690459037 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., 12405727161 + 284731876 = 111381^2 + 16874^2 .

It is a cyclic number.

It is not a de Polignac number, because 12690459037 - 23 = 12690459029 is a prime.

It is a super-2 number, since 2×126904590372 (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 (12690459017) 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, 6345229518 + 6345229519.

It is an arithmetic number, because the mean of its divisors is an integer number (6345229519).

Almost surely, 212690459037 is an apocalyptic number.

It is an amenable number.

12690459037 is a deficient number, since it is larger than the sum of its proper divisors (1).

12690459037 is an equidigital number, since it uses as much as digits as its factorization.

12690459037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 12690459037 in words is "twelve billion, six hundred ninety million, four hundred fifty-nine thousand, thirty-seven".