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6918271317269 = 132011382369221
BaseRepresentation
bin110010010101100100100…
…0110101011010100010101
3220111101021020000201110222
41210223021012223110111
51401322104424123034
622414113204124125
71312554132632234
oct144531106532425
926441236021428
106918271317269
112228027888354
12938983096645
133b250c313a30
1419cbbba6ab1b
15bee605b312e
hex64ac91ab515

6918271317269 has 16 divisors (see below), whose sum is σ = 7456208411904. Its totient is φ = 6381159220800.

The previous prime is 6918271317241. The next prime is 6918271317289. The reversal of 6918271317269 is 9627131728196.

It is not a de Polignac number, because 6918271317269 - 224 = 6918254540053 is a prime.

It is a super-2 number, since 2×69182713172692 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6918271317289) 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, 99910079 + ... + 99979299.

It is an arithmetic number, because the mean of its divisors is an integer number (466013025744).

Almost surely, 26918271317269 is an apocalyptic number.

It is an amenable number.

6918271317269 is a deficient number, since it is larger than the sum of its proper divisors (537937094635).

6918271317269 is a wasteful number, since it uses less digits than its factorization.

6918271317269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75068.

The product of its digits is 13716864, while the sum is 62.

The spelling of 6918271317269 in words is "six trillion, nine hundred eighteen billion, two hundred seventy-one million, three hundred seventeen thousand, two hundred sixty-nine".

Divisors: 1 13 2011 3823 26143 49699 69221 899873 7688053 99944689 139203431 264631883 1809644603 3440214479 532174716713 6918271317269