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14927116681 is a prime number
BaseRepresentation
bin11011110011011100…
…11011100110001001
31102112022000002120101
431321232123212021
5221032320213211
610505111525401
71035623253421
oct157156334611
942468002511
1014927116681
11636aa71774
122a87089861
13153b70b029
14a18691481
155c57195c1
hex379b9b989

14927116681 has 2 divisors, whose sum is σ = 14927116682. Its totient is φ = 14927116680.

The previous prime is 14927116663. The next prime is 14927116703. The reversal of 14927116681 is 18661172941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14776833600 + 150283081 = 121560^2 + 12259^2 .

It is a cyclic number.

It is not a de Polignac number, because 14927116681 - 25 = 14927116649 is a prime.

It is a super-2 number, since 2×149271166812 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (14927116181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7463558340 + 7463558341.

It is an arithmetic number, because the mean of its divisors is an integer number (7463558341).

Almost surely, 214927116681 is an apocalyptic number.

It is an amenable number.

14927116681 is a deficient number, since it is larger than the sum of its proper divisors (1).

14927116681 is an equidigital number, since it uses as much as digits as its factorization.

14927116681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 46.

The spelling of 14927116681 in words is "fourteen billion, nine hundred twenty-seven million, one hundred sixteen thousand, six hundred eighty-one".