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13678592881 is a prime number
BaseRepresentation
bin11001011110100111…
…01100001101110001
31022022021200111220011
430233103230031301
5211003204433011
610141151414521
7662653056352
oct145723541561
938267614804
1013678592881
11588a233318
122798b24441
13139cb57355
1493a92dd29
15550ce6621
hex32f4ec371

13678592881 has 2 divisors, whose sum is σ = 13678592882. Its totient is φ = 13678592880.

The previous prime is 13678592849. The next prime is 13678592891. The reversal of 13678592881 is 18829587631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10745395600 + 2933197281 = 103660^2 + 54159^2 .

It is a cyclic number.

It is not a de Polignac number, because 13678592881 - 25 = 13678592849 is a prime.

It is a super-2 number, since 2×136785928812 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13678592891) 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, 6839296440 + 6839296441.

It is an arithmetic number, because the mean of its divisors is an integer number (6839296441).

Almost surely, 213678592881 is an apocalyptic number.

It is an amenable number.

13678592881 is a deficient number, since it is larger than the sum of its proper divisors (1).

13678592881 is an equidigital number, since it uses as much as digits as its factorization.

13678592881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 58.

The spelling of 13678592881 in words is "thirteen billion, six hundred seventy-eight million, five hundred ninety-two thousand, eight hundred eighty-one".