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6818754853 is a prime number
BaseRepresentation
bin1100101100110110…
…11111000100100101
3122121012200122012001
412112123133010211
5102431100123403
63044341325301
7330655313521
oct62633370445
918535618161
106818754853
11298a011499
1213a3706831
138488b73b1
1448985ad81
1529d966c1d
hex1966df125

6818754853 has 2 divisors, whose sum is σ = 6818754854. Its totient is φ = 6818754852.

The previous prime is 6818754851. The next prime is 6818754911. The reversal of 6818754853 is 3584578186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6665416164 + 153338689 = 81642^2 + 12383^2 .

It is a cyclic number.

It is not a de Polignac number, because 6818754853 - 21 = 6818754851 is a prime.

It is a super-2 number, since 2×68187548532 = 92990835490622103218, which contains 22 as substring.

Together with 6818754851, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 6818754794 and 6818754803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6818754851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3409377426 + 3409377427.

It is an arithmetic number, because the mean of its divisors is an integer number (3409377427).

Almost surely, 26818754853 is an apocalyptic number.

It is an amenable number.

6818754853 is a deficient number, since it is larger than the sum of its proper divisors (1).

6818754853 is an equidigital number, since it uses as much as digits as its factorization.

6818754853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6451200, while the sum is 55.

The square root of 6818754853 is about 82575.7522097135. The cubic root of 6818754853 is about 1896.2766281330.

The spelling of 6818754853 in words is "six billion, eight hundred eighteen million, seven hundred fifty-four thousand, eight hundred fifty-three".