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2128880782141 is a prime number
BaseRepresentation
bin11110111110101011001…
…011101100101100111101
321112112000100202221022121
4132332223023230230331
5234334421440012031
64305554435242541
7306543436035421
oct36765313545475
97475010687277
102128880782141
11750942779a83
122a4711a49451
131259a25b9ac9
1475077456b81
153a59c961011
hex1efab2ecb3d

2128880782141 has 2 divisors, whose sum is σ = 2128880782142. Its totient is φ = 2128880782140.

The previous prime is 2128880782129. The next prime is 2128880782201. The reversal of 2128880782141 is 1412870888212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2085843620025 + 43037162116 = 1444245^2 + 207454^2 .

It is a cyclic number.

It is not a de Polignac number, because 2128880782141 - 27 = 2128880782013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2128880782121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064440391070 + 1064440391071.

It is an arithmetic number, because the mean of its divisors is an integer number (1064440391071).

Almost surely, 22128880782141 is an apocalyptic number.

It is an amenable number.

2128880782141 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128880782141 is an equidigital number, since it uses as much as digits as its factorization.

2128880782141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 917504, while the sum is 52.

The spelling of 2128880782141 in words is "two trillion, one hundred twenty-eight billion, eight hundred eighty million, seven hundred eighty-two thousand, one hundred forty-one".