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68415163551807 = 3523141771104369
BaseRepresentation
bin11111000111001001001011…
…00001010101000000111111
322222020102111101020112102020
433203210211201111000333
532431403223332124212
6401301254154131223
720260555350056562
oct1743444541250077
9288212441215366
1068415163551807
111a887787277636
12780b397a20b13
132c236a3492037
1412c7450db44d9
157d997e780d8c
hex3e392585503f

68415163551807 has 16 divisors (see below), whose sum is σ = 91240714897920. Its totient is φ = 45599861225600.

The previous prime is 68415163551803. The next prime is 68415163551869. The reversal of 68415163551807 is 70815536151486.

68415163551807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 68415163551807 - 22 = 68415163551803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68415163551803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 655460119 + ... + 655564487.

It is an arithmetic number, because the mean of its divisors is an integer number (5702544681120).

Almost surely, 268415163551807 is an apocalyptic number.

68415163551807 is a deficient number, since it is larger than the sum of its proper divisors (22825551346113).

68415163551807 is a wasteful number, since it uses less digits than its factorization.

68415163551807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151374.

The product of its (nonzero) digits is 24192000, while the sum is 60.

The spelling of 68415163551807 in words is "sixty-eight trillion, four hundred fifteen billion, one hundred sixty-three million, five hundred fifty-one thousand, eight hundred seven".

Divisors: 1 3 5231 15693 41771 104369 125313 313107 218504101 545954239 655512303 1637862717 4359597499 13078792497 22805054517269 68415163551807