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68187184223 is a prime number
BaseRepresentation
bin111111100000010001…
…011101110001011111
320112000002012212010112
4333200101131301133
52104121404343343
651154052000235
74632512334314
oct774021356137
9215002185115
1068187184223
1126a10984814
121126b90007b
1365789bb1b2
14342bd64d0b
151b913c5218
hexfe045dc5f

68187184223 has 2 divisors, whose sum is σ = 68187184224. Its totient is φ = 68187184222.

The previous prime is 68187184213. The next prime is 68187184309. The reversal of 68187184223 is 32248178186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68187184223 - 218 = 68186922079 is a prime.

It is a super-2 number, since 2×681871842232 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68187184213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34093592111 + 34093592112.

It is an arithmetic number, because the mean of its divisors is an integer number (34093592112).

Almost surely, 268187184223 is an apocalyptic number.

68187184223 is a deficient number, since it is larger than the sum of its proper divisors (1).

68187184223 is an equidigital number, since it uses as much as digits as its factorization.

68187184223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1032192, while the sum is 50.

The spelling of 68187184223 in words is "sixty-eight billion, one hundred eighty-seven million, one hundred eighty-four thousand, two hundred twenty-three".