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68754132287461 = 375407343669279
BaseRepresentation
bin11111010001000000100011…
…01000011011111111100101
3100000102211102200201102221001
433220200101220123333211
533002431430331144321
6402121113510353301
720324215330556365
oct1750402150337745
9300384380642831
1068754132287461
111a9a8511294795
12786501795b831
132c4964380a6ba
1412d9a097589a5
157e36bd11bc91
hex3e8811a1bfe5

68754132287461 has 8 divisors (see below), whose sum is σ = 70625411717120. Its totient is φ = 66883540207248.

The previous prime is 68754132287429. The next prime is 68754132287507. The reversal of 68754132287461 is 16478223145786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68754132287461 - 25 = 68754132287429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68754132287393 and 68754132287402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68754132287411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171634581 + ... + 172034698.

It is an arithmetic number, because the mean of its divisors is an integer number (8828176464640).

Almost surely, 268754132287461 is an apocalyptic number.

It is an amenable number.

68754132287461 is a deficient number, since it is larger than the sum of its proper divisors (1871279429659).

68754132287461 is a wasteful number, since it uses less digits than its factorization.

68754132287461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343674723.

The product of its digits is 108380160, while the sum is 64.

The spelling of 68754132287461 in words is "sixty-eight trillion, seven hundred fifty-four billion, one hundred thirty-two million, two hundred eighty-seven thousand, four hundred sixty-one".

Divisors: 1 37 5407 200059 343669279 12715763323 1858219791553 68754132287461