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38716868866687 = 1117212178945853
BaseRepresentation
bin10001100110110011110010…
…01101110011001001111111
312002002022000011022202220121
420303121321031303021333
520033314121412213222
6214202141202555411
711104126050262354
oct1063317115631177
9162068004282817
1038716868866687
1111377806146120
124413709068b67
13187aca626c15b
1497bc9943662b
154721abc195c7
hex23367937327f

38716868866687 has 12 divisors (see below), whose sum is σ = 44867236526136. Its totient is φ = 33126732717440.

The previous prime is 38716868866681. The next prime is 38716868866699. The reversal of 38716868866687 is 78666886861783.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-38716868866687 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38716868866598 and 38716868866607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38716868866681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6089469748 + ... + 6089476105.

It is an arithmetic number, because the mean of its divisors is an integer number (3738936377178).

Almost surely, 238716868866687 is an apocalyptic number.

38716868866687 is a deficient number, since it is larger than the sum of its proper divisors (6150367659449).

38716868866687 is a wasteful number, since it uses less digits than its factorization.

38716868866687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12178945898 (or 12178945881 counting only the distinct ones).

The product of its digits is 37456183296, while the sum is 88.

The spelling of 38716868866687 in words is "thirty-eight trillion, seven hundred sixteen billion, eight hundred sixty-eight million, eight hundred sixty-six thousand, six hundred eighty-seven".

Divisors: 1 11 17 187 289 3179 12178945853 133968404383 207042079501 2277462874511 3519715351517 38716868866687