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68085785088 = 293531127139
BaseRepresentation
bin111111011010001110…
…101010001000000000
320111202000102020200000
4333122032222020000
52103414430110323
651140030400000
74630141424106
oct773216521000
9214660366600
1068085785088
1126969718082
1211241960000
1365609a78c9
14341c6cbc76
151b87545e43
hexfda3aa200

68085785088 has 480 divisors, whose sum is σ = 213532999680. Its totient is φ = 21633454080.

The previous prime is 68085785059. The next prime is 68085785107. The reversal of 68085785088 is 88058758086.

68085785088 is a `hidden beast` number, since 6 + 8 + 0 + 8 + 578 + 50 + 8 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 489825723 + ... + 489825861.

It is an arithmetic number, because the mean of its divisors is an integer number (444860416).

Almost surely, 268085785088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68085785088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106766499840).

68085785088 is an abundant number, since it is smaller than the sum of its proper divisors (145447214592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68085785088 is a wasteful number, since it uses less digits than its factorization.

68085785088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 34406400, while the sum is 63.

The spelling of 68085785088 in words is "sixty-eight billion, eighty-five million, seven hundred eighty-five thousand, eighty-eight".