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4771438666667 is a prime number
BaseRepresentation
bin100010101101110111111…
…1010000010001110101011
3121220010220202122101012022
41011123233322002032223
51111133401244313132
614051545121535055
71001503461324551
oct105335772021653
917803822571168
104771438666667
11157a612810952
126508a11a448b
13287c3877946a
14126d20355bd1
15841b1b04e12
hex456efe823ab

4771438666667 has 2 divisors, whose sum is σ = 4771438666668. Its totient is φ = 4771438666666.

The previous prime is 4771438666649. The next prime is 4771438666669. The reversal of 4771438666667 is 7666668341774.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4771438666667 - 216 = 4771438601131 is a prime.

Together with 4771438666669, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4771438666667.

It is not a weakly prime, because it can be changed into another prime (4771438666669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2385719333333 + 2385719333334.

It is an arithmetic number, because the mean of its divisors is an integer number (2385719333334).

Almost surely, 24771438666667 is an apocalyptic number.

4771438666667 is a deficient number, since it is larger than the sum of its proper divisors (1).

4771438666667 is an equidigital number, since it uses as much as digits as its factorization.

4771438666667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1024192512, while the sum is 71.

The spelling of 4771438666667 in words is "four trillion, seven hundred seventy-one billion, four hundred thirty-eight million, six hundred sixty-six thousand, six hundred sixty-seven".