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68648835662 = 2113596386767
BaseRepresentation
bin111111111011110010…
…100001101001001110
320120012020220011211222
4333323302201221032
52111043100220122
651311542443342
74650116322011
oct777362415116
9216166804758
1068648835662
1127128529330
121137a433552
136620537324
1434733b7378
151bbbbb5b42
hexffbca1a4e

68648835662 has 16 divisors (see below), whose sum is σ = 112338876672. Its totient is φ = 31202788920.

The previous prime is 68648835623. The next prime is 68648835677. The reversal of 68648835662 is 26653884686.

It is a junction number, because it is equal to n+sod(n) for n = 68648835595 and 68648835604.

It is a congruent number.

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, 747803 + ... + 834569.

It is an arithmetic number, because the mean of its divisors is an integer number (7021179792).

Almost surely, 268648835662 is an apocalyptic number.

68648835662 is a deficient number, since it is larger than the sum of its proper divisors (43690041010).

68648835662 is a wasteful number, since it uses less digits than its factorization.

68648835662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122743.

The product of its digits is 79626240, while the sum is 62.

The spelling of 68648835662 in words is "sixty-eight billion, six hundred forty-eight million, eight hundred thirty-five thousand, six hundred sixty-two".

Divisors: 1 2 11 22 35963 71926 86767 173534 395593 791186 954437 1908874 3120401621 6240803242 34324417831 68648835662