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68255188297 is a prime number
BaseRepresentation
bin111111100100010100…
…111000010101001001
320112011211011211011221
4333210110320111021
52104241312011142
651204521322041
74634266346032
oct774424702511
9215154154157
1068255188297
1126a4630222a
121128a636321
136589b0b3aa
143436dc7a89
151b97359767
hexfe4538549

68255188297 has 2 divisors, whose sum is σ = 68255188298. Its totient is φ = 68255188296.

The previous prime is 68255188259. The next prime is 68255188363. The reversal of 68255188297 is 79288155286.

68255188297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48076701696 + 20178486601 = 219264^2 + 142051^2 .

It is a cyclic number.

It is not a de Polignac number, because 68255188297 - 223 = 68246799689 is a prime.

It is not a weakly prime, because it can be changed into another prime (68255188247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34127594148 + 34127594149.

It is an arithmetic number, because the mean of its divisors is an integer number (34127594149).

Almost surely, 268255188297 is an apocalyptic number.

It is an amenable number.

68255188297 is a deficient number, since it is larger than the sum of its proper divisors (1).

68255188297 is an equidigital number, since it uses as much as digits as its factorization.

68255188297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19353600, while the sum is 61.

The spelling of 68255188297 in words is "sixty-eight billion, two hundred fifty-five million, one hundred eighty-eight thousand, two hundred ninety-seven".