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14912214881 is a prime number
BaseRepresentation
bin11011110001101011…
…00101011101100001
31102111020222000010212
431320311211131201
5221020011334011
610503420303505
71035352510064
oct157065453541
942436860125
1014912214881
116362613833
122a820a1b95
1315385c12b5
14a166d28db
155c427408b
hex378d65761

14912214881 has 2 divisors, whose sum is σ = 14912214882. Its totient is φ = 14912214880.

The previous prime is 14912214869. The next prime is 14912214883. The reversal of 14912214881 is 18841221941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14685561856 + 226653025 = 121184^2 + 15055^2 .

It is a cyclic number.

It is not a de Polignac number, because 14912214881 - 26 = 14912214817 is a prime.

It is a super-2 number, since 2×149122148812 (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 14912214883, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (14912214883) 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, 7456107440 + 7456107441.

It is an arithmetic number, because the mean of its divisors is an integer number (7456107441).

Almost surely, 214912214881 is an apocalyptic number.

It is an amenable number.

14912214881 is a deficient number, since it is larger than the sum of its proper divisors (1).

14912214881 is an equidigital number, since it uses as much as digits as its factorization.

14912214881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 41.

The spelling of 14912214881 in words is "fourteen billion, nine hundred twelve million, two hundred fourteen thousand, eight hundred eighty-one".