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61968518060 = 2253098425903
BaseRepresentation
bin111001101101100111…
…001000101110101100
312220221200200212212112
4321231213020232230
52003402420034220
644245024223152
74322431466261
oct715547105654
9186850625775
1061968518060
112430a681899
121001516aab8
135ac7530b87
142ddc0b5268
15192a4975c5
hexe6d9c8bac

61968518060 has 12 divisors (see below), whose sum is σ = 130133887968. Its totient is φ = 24787407216.

The previous prime is 61968518011. The next prime is 61968518063. The reversal of 61968518060 is 6081586916.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (61968518063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1549212932 + ... + 1549212971.

It is an arithmetic number, because the mean of its divisors is an integer number (10844490664).

Almost surely, 261968518060 is an apocalyptic number.

It is an amenable number.

61968518060 is an abundant number, since it is smaller than the sum of its proper divisors (68165369908).

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

61968518060 is a wasteful number, since it uses less digits than its factorization.

61968518060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098425912 (or 3098425910 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 50.

The spelling of 61968518060 in words is "sixty-one billion, nine hundred sixty-eight million, five hundred eighteen thousand, sixty".

Divisors: 1 2 4 5 10 20 3098425903 6196851806 12393703612 15492129515 30984259030 61968518060