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68745219307 is a prime number
BaseRepresentation
bin100000000000110001…
…0001100110011101011
320120102222020222100121
41000001202030303223
52111242234004212
651325304344111
74652366502622
oct1000142146353
9216388228317
1068745219307
112717797a836
12113a6775037
1366374b2a7b
1434821066b9
151bc53a3d07
hex100188cceb

68745219307 has 2 divisors, whose sum is σ = 68745219308. Its totient is φ = 68745219306.

The previous prime is 68745219281. The next prime is 68745219313. The reversal of 68745219307 is 70391254786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68745219307 - 215 = 68745186539 is a prime.

It is not a weakly prime, because it can be changed into another prime (68745219007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34372609653 + 34372609654.

It is an arithmetic number, because the mean of its divisors is an integer number (34372609654).

It is a 1-persistent number, because it is pandigital, but 2⋅68745219307 = 137490438614 is not.

Almost surely, 268745219307 is an apocalyptic number.

68745219307 is a deficient number, since it is larger than the sum of its proper divisors (1).

68745219307 is an equidigital number, since it uses as much as digits as its factorization.

68745219307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 68745219307 in words is "sixty-eight billion, seven hundred forty-five million, two hundred nineteen thousand, three hundred seven".