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68387850935117 = 715164699953581
BaseRepresentation
bin11111000110010110010011…
…00011111101101101001101
322222010210222220201211220022
433203023021203331231031
532430431304314410432
6401240540042031525
720255600461465520
oct1743131143755515
9288123886654808
1068387850935117
111a877140a9244a
127806034aa85a5
132c20c3cab6a9c
1412c5dbd836bb7
157d8dd1a48b12
hex3e32c98fdb4d

68387850935117 has 8 divisors (see below), whose sum is σ = 78675143555712. Its totient is φ = 58229958222000.

The previous prime is 68387850935039. The next prime is 68387850935153. The reversal of 68387850935117 is 71153905878386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68387850935117 - 214 = 68387850918733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68387850935167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32349975734 + ... + 32349977847.

It is an arithmetic number, because the mean of its divisors is an integer number (9834392944464).

Almost surely, 268387850935117 is an apocalyptic number.

It is an amenable number.

68387850935117 is a deficient number, since it is larger than the sum of its proper divisors (10287292620595).

68387850935117 is a wasteful number, since it uses less digits than its factorization.

68387850935117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64699953739.

The product of its (nonzero) digits is 304819200, while the sum is 71.

The spelling of 68387850935117 in words is "sixty-eight trillion, three hundred eighty-seven billion, eight hundred fifty million, nine hundred thirty-five thousand, one hundred seventeen".

Divisors: 1 7 151 1057 64699953581 452899675067 9769692990731 68387850935117