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12886902385812 = 22337133735439017
BaseRepresentation
bin1011101110000111011100…
…1111010010110010010100
31200121222100101101110002000
42323201313033102302110
53142114334002321222
643224054454115300
72500022311630650
oct273416717226224
950558311343060
1012886902385812
114119339488264
12154169964bb30
137262ca7ba410
14327a2d6a9a60
151753406679ac
hexbb8773d2c94

12886902385812 has 192 divisors, whose sum is σ = 42231968970240. Its totient is φ = 3306885460992.

The previous prime is 12886902385769. The next prime is 12886902385843. The reversal of 12886902385812 is 21858320968821.

12886902385812 is a `hidden beast` number, since 1 + 28 + 8 + 6 + 9 + 0 + 23 + 8 + 581 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 12886902385812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17355873 + ... + 18083144.

It is an arithmetic number, because the mean of its divisors is an integer number (219958171720).

Almost surely, 212886902385812 is an apocalyptic number.

12886902385812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12886902385812 is an abundant number, since it is smaller than the sum of its proper divisors (29345066584428).

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

12886902385812 is a wasteful number, since it uses less digits than its factorization.

12886902385812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35439087 (or 35439079 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 63.

The spelling of 12886902385812 in words is "twelve trillion, eight hundred eighty-six billion, nine hundred two million, three hundred eighty-five thousand, eight hundred twelve".