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68087760611 = 1367265929399
BaseRepresentation
bin111111011010010110…
…001100011011100011
320111202011010121120112
4333122112030123203
52103420431314421
651140141001535
74630164262463
oct773226143343
9214664117515
1068087760611
112696a847342
12112425532ab
136561219b60
14341ca83ba3
151b877d645b
hexfda58c6e3

68087760611 has 16 divisors (see below), whose sum is σ = 74450208000. Its totient is φ = 61886788128.

The previous prime is 68087760607. The next prime is 68087760641. The reversal of 68087760611 is 11606778086.

It is a cyclic number.

It is not a de Polignac number, because 68087760611 - 22 = 68087760607 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 68087760611.

It is not an unprimeable number, because it can be changed into a prime (68087760641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2301290 + ... + 2330688.

It is an arithmetic number, because the mean of its divisors is an integer number (4653138000).

Almost surely, 268087760611 is an apocalyptic number.

68087760611 is a deficient number, since it is larger than the sum of its proper divisors (6362447389).

68087760611 is a wasteful number, since it uses less digits than its factorization.

68087760611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32138.

The product of its (nonzero) digits is 677376, while the sum is 50.

The spelling of 68087760611 in words is "sixty-eight billion, eighty-seven million, seven hundred sixty thousand, six hundred eleven".

Divisors: 1 13 67 871 2659 29399 34567 178153 382187 1969733 2315989 25606529 78171941 1016235233 5237520047 68087760611