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13680908593993 is a prime number
BaseRepresentation
bin1100011100010101010110…
…1100100110101101001001
31210102212211001011000102001
43013011111230212231021
53243122000100001433
645032531142511001
72611261445222164
oct307052554465511
953385731130361
1013680908593993
1143a504a2714a3
12164b550735461
13783147a629c4
1435423399aadb
1518ad1264b57d
hexc7155b26b49

13680908593993 has 2 divisors, whose sum is σ = 13680908593994. Its totient is φ = 13680908593992.

The previous prime is 13680908593939. The next prime is 13680908593999. The reversal of 13680908593993 is 39939580908631.

13680908593993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (13680908593939) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13291186821264 + 389721772729 = 3645708^2 + 624277^2 .

It is an emirp because it is prime and its reverse (39939580908631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13680908593993 - 29 = 13680908593481 is a prime.

It is not a weakly prime, because it can be changed into another prime (13680908593999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6840454296996 + 6840454296997.

It is an arithmetic number, because the mean of its divisors is an integer number (6840454296997).

Almost surely, 213680908593993 is an apocalyptic number.

It is an amenable number.

13680908593993 is a deficient number, since it is larger than the sum of its proper divisors (1).

13680908593993 is an equidigital number, since it uses as much as digits as its factorization.

13680908593993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340122240, while the sum is 73.

The spelling of 13680908593993 in words is "thirteen trillion, six hundred eighty billion, nine hundred eight million, five hundred ninety-three thousand, nine hundred ninety-three".