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67376065769 is a prime number
BaseRepresentation
bin111110101111111011…
…010010110011101001
320102220112221202210022
4332233323102303221
52100441233101034
650541354530225
74603433052425
oct765773226351
9212815852708
1067376065769
112663503a491
1211084136975
13647994464c
143392343b85
151b450a3b2e
hexfafed2ce9

67376065769 has 2 divisors, whose sum is σ = 67376065770. Its totient is φ = 67376065768.

The previous prime is 67376065759. The next prime is 67376065859. The reversal of 67376065769 is 96756067376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36086701225 + 31289364544 = 189965^2 + 176888^2 .

It is a cyclic number.

It is not a de Polignac number, because 67376065769 - 28 = 67376065513 is a prime.

It is a super-2 number, since 2×673760657692 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67376065759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33688032884 + 33688032885.

It is an arithmetic number, because the mean of its divisors is an integer number (33688032885).

Almost surely, 267376065769 is an apocalyptic number.

It is an amenable number.

67376065769 is a deficient number, since it is larger than the sum of its proper divisors (1).

67376065769 is an equidigital number, since it uses as much as digits as its factorization.

67376065769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60011280, while the sum is 62.

The spelling of 67376065769 in words is "sixty-seven billion, three hundred seventy-six million, sixty-five thousand, seven hundred sixty-nine".