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12708107077 is a prime number
BaseRepresentation
bin10111101010111011…
…00101001101000101
31012210122112201122111
423311131211031011
5202011233411302
65501002501021
7626630061601
oct136535451505
935718481574
1012708107077
115431438a36
122567b04771
131276a81cb3
14887aa6501
154e59e50d7
hex2f5765345

12708107077 has 2 divisors, whose sum is σ = 12708107078. Its totient is φ = 12708107076.

The previous prime is 12708107051. The next prime is 12708107099. The reversal of 12708107077 is 77070180721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7004685636 + 5703421441 = 83694^2 + 75521^2 .

It is a cyclic number.

It is not a de Polignac number, because 12708107077 - 211 = 12708105029 is a prime.

It is a super-2 number, since 2×127081070772 (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 (12708105077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6354053538 + 6354053539.

It is an arithmetic number, because the mean of its divisors is an integer number (6354053539).

Almost surely, 212708107077 is an apocalyptic number.

It is an amenable number.

12708107077 is a deficient number, since it is larger than the sum of its proper divisors (1).

12708107077 is an equidigital number, since it uses as much as digits as its factorization.

12708107077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38416, while the sum is 40.

Adding to 12708107077 its reverse (77070180721), we get a palindrome (89778287798).

The spelling of 12708107077 in words is "twelve billion, seven hundred eight million, one hundred seven thousand, seventy-seven".