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68141855599 = 17257111713963
BaseRepresentation
bin111111011101100100…
…100011001101101111
320111212220220220221121
4333131210203031233
52104023303334344
651145352241411
74631422134016
oct773544431557
9214786826847
1068141855599
1126998334744
12112586a0267
13656c4aa11c
143425d25a7d
151b8c41e684
hexfdd92336f

68141855599 has 16 divisors (see below), whose sum is σ = 72500976288. Its totient is φ = 63822200832.

The previous prime is 68141855581. The next prime is 68141855641. The reversal of 68141855599 is 99555814186.

It is a cyclic number.

It is not a de Polignac number, because 68141855599 - 27 = 68141855471 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 (68141855099) 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, 4873192 + ... + 4887154.

It is an arithmetic number, because the mean of its divisors is an integer number (4531311018).

Almost surely, 268141855599 is an apocalyptic number.

68141855599 is a deficient number, since it is larger than the sum of its proper divisors (4359120689).

68141855599 is a wasteful number, since it uses less digits than its factorization.

68141855599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15354.

The product of its digits is 15552000, while the sum is 61.

The spelling of 68141855599 in words is "sixty-eight billion, one hundred forty-one million, eight hundred fifty-five thousand, five hundred ninety-nine".

Divisors: 1 17 257 1117 4369 13963 18989 237371 287069 3588491 4880173 15596671 61004347 265143407 4008344447 68141855599