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17774380980868 = 2217655513987551
BaseRepresentation
bin1000000101010011010111…
…01010100001101010000100
32022221012210011121221202211
410002221223222201222010
54312203413012341433
6101445234330313204
73513104505343621
oct402515352415204
968835704557684
1017774380980868
115733088760876
121bb0964288804
139bc169b9c5a5
144563db049348
1520c5447388cd
hex102a6baa1a84

17774380980868 has 24 divisors (see below), whose sum is σ = 32935393096704. Its totient is φ = 8364284880000.

The previous prime is 17774380980841. The next prime is 17774380980947. The reversal of 17774380980868 is 86808908347771.

It is a junction number, because it is equal to n+sod(n) for n = 17774380980794 and 17774380980803.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2463693 + ... + 6451243.

It is an arithmetic number, because the mean of its divisors is an integer number (1372308045696).

Almost surely, 217774380980868 is an apocalyptic number.

It is an amenable number.

17774380980868 is a deficient number, since it is larger than the sum of its proper divisors (15161012115836).

17774380980868 is a wasteful number, since it uses less digits than its factorization.

17774380980868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053123 (or 4053121 counting only the distinct ones).

The product of its (nonzero) digits is 910393344, while the sum is 76.

The spelling of 17774380980868 in words is "seventeen trillion, seven hundred seventy-four billion, three hundred eighty million, nine hundred eighty thousand, eight hundred sixty-eight".

Divisors: 1 2 4 17 34 68 65551 131102 262204 1114367 2228734 3987551 4457468 7975102 15950204 67788367 135576734 271153468 261387955601 522775911202 1045551822404 4443595245217 8887190490434 17774380980868