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BaseRepresentation
bin1011100010100111011110…
…0101110101100010011100
31122221002101220112012212100
42320221313211311202130
53130400231442042313
642553222514205100
72446526445434625
oct270516745654234
948832356465770
1012689339799708
114052578563210
12150b342283790
137107a44565b0
1431c24b1c6a4c
1517012b1aa173
hexb8a7797589c

12689339799708 has 216 divisors, whose sum is σ = 40030567471440. Its totient is φ = 3340673187840.

The previous prime is 12689339799707. The next prime is 12689339799709. The reversal of 12689339799708 is 80799793398621.

12689339799708 is a `hidden beast` number, since 12 + 68 + 9 + 3 + 397 + 99 + 70 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (12689339799707) and next prime (12689339799709).

It is a super-2 number, since 2×126893397997082 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12689339799707) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2776773 + ... + 5752316.

Almost surely, 212689339799708 is an apocalyptic number.

12689339799708 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12689339799708 is an abundant number, since it is smaller than the sum of its proper divisors (27341227671732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12689339799708 is a wasteful number, since it uses less digits than its factorization.

12689339799708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8529157 (or 8529135 counting only the distinct ones).

The product of its (nonzero) digits is 2222131968, while the sum is 81.

The spelling of 12689339799708 in words is "twelve trillion, six hundred eighty-nine billion, three hundred thirty-nine million, seven hundred ninety-nine thousand, seven hundred eight".