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68027816495 = 5372357156011
BaseRepresentation
bin111111010110110001…
…100001101000101111
320111120222100010201002
4333112301201220233
52103310110111440
651130200110515
74625535620342
oct772661415057
9214528303632
1068027816495
1126939a24451
121122646543b
13655198c472
143414b1c459
151b823e5115
hexfd6c61a2f

68027816495 has 16 divisors (see below), whose sum is σ = 83875795488. Its totient is φ = 52928576640.

The previous prime is 68027816453. The next prime is 68027816503. The reversal of 68027816495 is 59461872086.

It is a happy number.

It is not a de Polignac number, because 68027816495 - 26 = 68027816431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68027816495.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358040 + ... + 514050.

It is an arithmetic number, because the mean of its divisors is an integer number (5242237218).

Almost surely, 268027816495 is an apocalyptic number.

68027816495 is a deficient number, since it is larger than the sum of its proper divisors (15847978993).

68027816495 is a wasteful number, since it uses less digits than its factorization.

68027816495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158410.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 68027816495 in words is "sixty-eight billion, twenty-seven million, eight hundred sixteen thousand, four hundred ninety-five".

Divisors: 1 5 37 185 2357 11785 87209 156011 436045 780055 5772407 28862035 367717927 1838589635 13605563299 68027816495