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68796850779 = 3211587659713
BaseRepresentation
bin100000000010010011…
…1001010001001011011
320120120120102010102100
41000010213022021123
52111343443211104
651334351134443
74653564403656
oct1000447121133
9216516363370
1068796850779
11271a4035278
12113bbb14423
1366450bc937
143488d0689d
151bc9ba2139
hex10049ca25b

68796850779 has 12 divisors (see below), whose sum is σ = 99381955816. Its totient is φ = 45860539392.

The previous prime is 68796850709. The next prime is 68796850783. The reversal of 68796850779 is 97705869786.

It is not a de Polignac number, because 68796850779 - 28 = 68796850523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68796850709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225574 + ... + 434139.

Almost surely, 268796850779 is an apocalyptic number.

68796850779 is a deficient number, since it is larger than the sum of its proper divisors (30585105037).

68796850779 is a wasteful number, since it uses less digits than its factorization.

68796850779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671306 (or 671303 counting only the distinct ones).

The product of its (nonzero) digits is 320060160, while the sum is 72.

The spelling of 68796850779 in words is "sixty-eight billion, seven hundred ninety-six million, eight hundred fifty thousand, seven hundred seventy-nine".

Divisors: 1 3 9 11587 34761 104283 659713 1979139 5937417 7644094531 22932283593 68796850779