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68774530968 = 2332111331321341
BaseRepresentation
bin100000000001101001…
…0000000111110011000
320120112000102011101200
41000003102000332120
52111322234442333
651332232514200
74653203603433
oct1000322007630
9216460364350
1068774530968
1127192480050
12113b454b960
1366405a6650
143485d7681a
151bc7c43c13
hex1003480f98

68774530968 has 192 divisors, whose sum is σ = 219537470880. Its totient is φ = 19175270400.

The previous prime is 68774530943. The next prime is 68774530969. The reversal of 68774530968 is 86903547786.

68774530968 is a `hidden beast` number, since 6 + 8 + 7 + 7 + 4 + 530 + 96 + 8 = 666.

It is a super-2 number, since 2×687745309682 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68774530969) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3211978 + ... + 3233318.

Almost surely, 268774530968 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 68774530968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109768735440).

68774530968 is an abundant number, since it is smaller than the sum of its proper divisors (150762939912).

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

68774530968 is a wasteful number, since it uses less digits than its factorization.

68774530968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21690 (or 21683 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 63.

The spelling of 68774530968 in words is "sixty-eight billion, seven hundred seventy-four million, five hundred thirty thousand, nine hundred sixty-eight".