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68949603832928 = 2571353656368071
BaseRepresentation
bin11111010110101100101001…
…01001001101010001100000
3100001010111222102220210122012
433223112110221031101200
533014132242040123203
6402351002152132052
720344305313362140
oct1753262451152140
9301114872823565
1068949603832928
111aa733a993aa85
127896a8a997028
132c61bc589c680
141305270244920
157e880dc31bd8
hex3eb594a4d460

68949603832928 has 192 divisors, whose sum is σ = 170250899438592. Its totient is φ = 26757639567360.

The previous prime is 68949603832871. The next prime is 68949603832933. The reversal of 68949603832928 is 82923830694986.

68949603832928 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1012873133 + ... + 1012941203.

It is an arithmetic number, because the mean of its divisors is an integer number (886723434576).

Almost surely, 268949603832928 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 68949603832928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85125449719296).

68949603832928 is an abundant number, since it is smaller than the sum of its proper divisors (101301295605664).

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

68949603832928 is a wasteful number, since it uses less digits than its factorization.

68949603832928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74717 (or 74709 counting only the distinct ones).

The product of its (nonzero) digits is 1934917632, while the sum is 77.

The spelling of 68949603832928 in words is "sixty-eight trillion, nine hundred forty-nine billion, six hundred three million, eight hundred thirty-two thousand, nine hundred twenty-eight".