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68710748559 = 336736235661
BaseRepresentation
bin111111111111011110…
…101101000110001111
320120100120101200101020
4333333132231012033
52111204422423214
651322033445223
74651500504045
oct777736550617
9216316350336
1068710748559
112715a476412
1211397110813
136630303b8b
14347b6d2395
151bc23454a9
hexfff7ad18f

68710748559 has 8 divisors (see below), whose sum is σ = 91639288752. Its totient is φ = 45794687040.

The previous prime is 68710748539. The next prime is 68710748599. The reversal of 68710748559 is 95584701786.

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

It is not a de Polignac number, because 68710748559 - 217 = 68710617487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68710748539) 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, 3106812 + ... + 3128849.

It is an arithmetic number, because the mean of its divisors is an integer number (11454911094).

Almost surely, 268710748559 is an apocalyptic number.

68710748559 is a deficient number, since it is larger than the sum of its proper divisors (22928540193).

68710748559 is a wasteful number, since it uses less digits than its factorization.

68710748559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6239337.

The product of its (nonzero) digits is 16934400, while the sum is 60.

The spelling of 68710748559 in words is "sixty-eight billion, seven hundred ten million, seven hundred forty-eight thousand, five hundred fifty-nine".

Divisors: 1 3 3673 11019 6235661 18706983 22903582853 68710748559