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68653876725 = 345273971019
BaseRepresentation
bin111111111100000101…
…110000010111110101
320120012121101021220000
4333330011300113311
52111100343023400
651312242501513
74650210216000
oct777405602765
9216177337800
1068653876725
11271303617a5
1211380064899
1366215b09c5
143473d2a537
151bbc35e600
hexffc1705f5

68653876725 has 240 divisors, whose sum is σ = 149979984000. Its totient is φ = 31030594560.

The previous prime is 68653876721. The next prime is 68653876751. The reversal of 68653876725 is 52767835686.

It is a happy number.

68653876725 is a `hidden beast` number, since 6 + 8 + 6 + 538 + 76 + 7 + 25 = 666.

It is not a de Polignac number, because 68653876725 - 22 = 68653876721 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68653876721) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 67373266 + ... + 67374284.

It is an arithmetic number, because the mean of its divisors is an integer number (624916600).

Almost surely, 268653876725 is an apocalyptic number.

It is an amenable number.

68653876725 is an abundant number, since it is smaller than the sum of its proper divisors (81326107275).

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

68653876725 is a wasteful number, since it uses less digits than its factorization.

68653876725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159 (or 1131 counting only the distinct ones).

The product of its digits is 101606400, while the sum is 63.

The spelling of 68653876725 in words is "sixty-eight billion, six hundred fifty-three million, eight hundred seventy-six thousand, seven hundred twenty-five".