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7068443438661 = 311594666377801
BaseRepresentation
bin110011011011100000000…
…0011110110111001000101
3221000201212222100220111220
41212313000003312321011
51411302133010014121
623011110441550553
71326451421616153
oct146670003667105
927021788326456
107068443438661
11228578a057890
12961ab34a5459
133c3722438c67
141a61862243d3
15c3cee3416c6
hex66dc00f6e45

7068443438661 has 32 divisors (see below), whose sum is σ = 10455991280640. Its totient is φ = 4211152176000.

The previous prime is 7068443438629. The next prime is 7068443438689. The reversal of 7068443438661 is 1668343448607.

It is not a de Polignac number, because 7068443438661 - 25 = 7068443438629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7068443438595 and 7068443438604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7068443436661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90813961 + ... + 90891761.

It is an arithmetic number, because the mean of its divisors is an integer number (326749727520).

Almost surely, 27068443438661 is an apocalyptic number.

It is an amenable number.

7068443438661 is a deficient number, since it is larger than the sum of its proper divisors (3387547841979).

7068443438661 is a wasteful number, since it uses less digits than its factorization.

7068443438661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124537.

The product of its (nonzero) digits is 55738368, while the sum is 60.

The spelling of 7068443438661 in words is "seven trillion, sixty-eight billion, four hundred forty-three million, four hundred thirty-eight thousand, six hundred sixty-one".

Divisors: 1 3 11 33 59 177 649 1947 46663 77801 139989 233403 513293 855811 1539879 2567433 2753117 4590259 8259351 13770777 30284287 50492849 90852861 151478547 3630428063 10891284189 39934708693 119804126079 214195255717 642585767151 2356147812887 7068443438661