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68718224383 is a prime number
BaseRepresentation
bin111111111111111011…
…001110001111111111
320120101002110111021121
4333333323032033333
52111213331140013
651322502011411
74651621161334
oct777773161777
9216332414247
1068718224383
1127163712086
1211399716b67
136631a20843
14347c6ba98b
151bc2d2058d
hexfffece3ff

68718224383 has 2 divisors, whose sum is σ = 68718224384. Its totient is φ = 68718224382.

The previous prime is 68718224371. The next prime is 68718224503. The reversal of 68718224383 is 38342281786.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68718224383 - 221 = 68716127231 is a prime.

It is a super-3 number, since 3×687182243833 (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68718224383.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68718224083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34359112191 + 34359112192.

It is an arithmetic number, because the mean of its divisors is an integer number (34359112192).

Almost surely, 268718224383 is an apocalyptic number.

68718224383 is a deficient number, since it is larger than the sum of its proper divisors (1).

68718224383 is an equidigital number, since it uses as much as digits as its factorization.

68718224383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3096576, while the sum is 52.

The spelling of 68718224383 in words is "sixty-eight billion, seven hundred eighteen million, two hundred twenty-four thousand, three hundred eighty-three".