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181880680963 is a prime number
BaseRepresentation
bin1010100101100011101…
…1101111001000000011
3122101110120120220112011
42221120323233020003
510434442423242323
6215315502113351
716066113164662
oct2513073571003
9571416526464
10181880680963
11701539a2673
122b2bb57b857
13141c7472917
148b358b4dd9
154ae789c20d
hex2a58eef203

181880680963 has 2 divisors, whose sum is σ = 181880680964. Its totient is φ = 181880680962.

The previous prime is 181880680937. The next prime is 181880681027. The reversal of 181880680963 is 369086088181.

181880680963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 181880680963 - 25 = 181880680931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 181880680898 and 181880680907.

It is not a weakly prime, because it can be changed into another prime (181880680913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90940340481 + 90940340482.

It is an arithmetic number, because the mean of its divisors is an integer number (90940340482).

Almost surely, 2181880680963 is an apocalyptic number.

181880680963 is a deficient number, since it is larger than the sum of its proper divisors (1).

181880680963 is an equidigital number, since it uses as much as digits as its factorization.

181880680963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3981312, while the sum is 58.

The spelling of 181880680963 in words is "one hundred eighty-one billion, eight hundred eighty million, six hundred eighty thousand, nine hundred sixty-three".