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68308590597996 = 223723312434391949
BaseRepresentation
bin11111000100000010101010…
…10001110001011101101100
322221212020102010102112121210
433202001111101301131230
532423131443143113441
6401140311105554420
720250063360650460
oct1742012521613554
9287766363375553
1068308590597996
111a846568656001
1277b27b4945a10
132c1661ac9a618
1412c2220ddc4a0
157d6ce3484616
hex3e205547176c

68308590597996 has 576 divisors, whose sum is σ = 201534068736000. Its totient is φ = 17596618744320.

The previous prime is 68308590597991. The next prime is 68308590598033. The reversal of 68308590597996 is 69979509580386.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is not an unprimeable number, because it can be changed into a prime (68308590597991) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 35048018830 + ... + 35048020778.

It is an arithmetic number, because the mean of its divisors is an integer number (349885536000).

Almost surely, 268308590597996 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 68308590597996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100767034368000).

68308590597996 is an abundant number, since it is smaller than the sum of its proper divisors (133225478138004).

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

68308590597996 is a wasteful number, since it uses less digits than its factorization.

68308590597996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530 (or 2497 counting only the distinct ones).

The product of its (nonzero) digits is 7936185600, while the sum is 84.

The spelling of 68308590597996 in words is "sixty-eight trillion, three hundred eight billion, five hundred ninety million, five hundred ninety-seven thousand, nine hundred ninety-six".