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61886160043 is a prime number
BaseRepresentation
bin111001101000101100…
…111101110010101011
312220201221201122220121
4321220230331302223
52003220324110133
644232523104111
74320411452401
oct715054756253
9186657648817
1061886160043
1124278140014
12bbb1672037
135ab3456416
142dd1197471
15192312a02d
hexe68b3dcab

61886160043 has 2 divisors, whose sum is σ = 61886160044. Its totient is φ = 61886160042.

The previous prime is 61886159999. The next prime is 61886160059. The reversal of 61886160043 is 34006168816.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61886160043 - 213 = 61886151851 is a prime.

It is not a weakly prime, because it can be changed into another prime (61886160143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30943080021 + 30943080022.

It is an arithmetic number, because the mean of its divisors is an integer number (30943080022).

Almost surely, 261886160043 is an apocalyptic number.

61886160043 is a deficient number, since it is larger than the sum of its proper divisors (1).

61886160043 is an equidigital number, since it uses as much as digits as its factorization.

61886160043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 61886160043 in words is "sixty-one billion, eight hundred eighty-six million, one hundred sixty thousand, forty-three".