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27674495281 is a prime number
BaseRepresentation
bin11001110001100001…
…110100100100110001
32122102200110000121201
4121301201310210301
5423134132322111
620414040251201
71666541220466
oct316141644461
978380400551
1027674495281
1110811592a04
125444170b01
1327c06600c4
1414a765b66d
15abe8ba6c1
hex671874931

27674495281 has 2 divisors, whose sum is σ = 27674495282. Its totient is φ = 27674495280.

The previous prime is 27674495237. The next prime is 27674495291. The reversal of 27674495281 is 18259447672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26661664656 + 1012830625 = 163284^2 + 31825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-27674495281 is a prime.

It is a super-2 number, since 2×276744952812 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27674495221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13837247640 + 13837247641.

It is an arithmetic number, because the mean of its divisors is an integer number (13837247641).

Almost surely, 227674495281 is an apocalyptic number.

It is an amenable number.

27674495281 is a deficient number, since it is larger than the sum of its proper divisors (1).

27674495281 is an equidigital number, since it uses as much as digits as its factorization.

27674495281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6773760, while the sum is 55.

The spelling of 27674495281 in words is "twenty-seven billion, six hundred seventy-four million, four hundred ninety-five thousand, two hundred eighty-one".