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12613455457 is a prime number
BaseRepresentation
bin10111011111101001…
…00000111001100001
31012120001102221000221
423233310200321201
5201313021033312
65443342043041
7624400413421
oct135764407141
935501387027
1012613455457
115392a6a859
122540279481
131260291a15
148792a8481
154dc54a207
hex2efd20e61

12613455457 has 2 divisors, whose sum is σ = 12613455458. Its totient is φ = 12613455456.

The previous prime is 12613455433. The next prime is 12613455583. The reversal of 12613455457 is 75455431621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12232581201 + 380874256 = 110601^2 + 19516^2 .

It is a cyclic number.

It is not a de Polignac number, because 12613455457 - 231 = 10465971809 is a prime.

It is not a weakly prime, because it can be changed into another prime (12613455857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6306727728 + 6306727729.

It is an arithmetic number, because the mean of its divisors is an integer number (6306727729).

Almost surely, 212613455457 is an apocalyptic number.

It is an amenable number.

12613455457 is a deficient number, since it is larger than the sum of its proper divisors (1).

12613455457 is an equidigital number, since it uses as much as digits as its factorization.

12613455457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 43.

The spelling of 12613455457 in words is "twelve billion, six hundred thirteen million, four hundred fifty-five thousand, four hundred fifty-seven".