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12687246467904 = 2632371109736887
BaseRepresentation
bin1011100010011111101011…
…0100011010001101000000
31122220220000000112221110210
42320213322310122031000
53130331440043433104
642552235054554120
72446423536422511
oct270477264321500
948826000487423
1012687246467904
1140516a396a028
12150aa59208940
1371052c861918
1431c0cd194a08
1517005750d989
hexb89fad1a340

12687246467904 has 224 divisors, whose sum is σ = 35554526539776. Its totient is φ = 3984490639360.

The previous prime is 12687246467891. The next prime is 12687246467911. The reversal of 12687246467904 is 40976464278621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343930549 + ... + 343967435.

Almost surely, 212687246467904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12687246467904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17777263269888).

12687246467904 is an abundant number, since it is smaller than the sum of its proper divisors (22867280071872).

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

12687246467904 is a wasteful number, since it uses less digits than its factorization.

12687246467904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38093 (or 38083 counting only the distinct ones).

The product of its (nonzero) digits is 195084288, while the sum is 66.

The spelling of 12687246467904 in words is "twelve trillion, six hundred eighty-seven billion, two hundred forty-six million, four hundred sixty-seven thousand, nine hundred four".