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18739114843 is a prime number
BaseRepresentation
bin10001011100111100…
…000011001101011011
31210100221221122222111
4101130330003031123
5301334203133333
612335244133151
71232241563611
oct213474031533
953327848874
1018739114843
117a46818379
12376b8371b7
1319c83b6647
14c9aa676b1
1574a2054cd
hex45cf0335b

18739114843 has 2 divisors, whose sum is σ = 18739114844. Its totient is φ = 18739114842.

The previous prime is 18739114799. The next prime is 18739114897. The reversal of 18739114843 is 34841193781.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-18739114843 is a prime.

It is not a weakly prime, because it can be changed into another prime (18739714843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9369557421 + 9369557422.

It is an arithmetic number, because the mean of its divisors is an integer number (9369557422).

Almost surely, 218739114843 is an apocalyptic number.

18739114843 is a deficient number, since it is larger than the sum of its proper divisors (1).

18739114843 is an equidigital number, since it uses as much as digits as its factorization.

18739114843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 49.

The spelling of 18739114843 in words is "eighteen billion, seven hundred thirty-nine million, one hundred fourteen thousand, eight hundred forty-three".