68480086009 has 2 divisors, whose sum is σ = 68480086010. Its totient is φ = 68480086008.

The previous prime is 68480085881. The next prime is 68480086013. The reversal of 68480086009 is 90068008486.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68060983225 + 419102784 = 260885^2 + 20472^2 .

It is a cyclic number.

It is not a de Polignac number, because 68480086009 - 2⁷ = 68480085881 is a prime.

It is not a weakly prime, because it can be changed into another prime (68480086019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34240043004 + 34240043005.

It is an arithmetic number, because the mean of its divisors is an integer number (34240043005).

Almost surely, 2^68480086009 is an apocalyptic number.

It is an amenable number.

68480086009 is a deficient number, since it is larger than the sum of its proper divisors (1).

68480086009 is an equidigital number, since it uses as much as digits as its factorization.

68480086009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 68480086009 in words is "sixty-eight billion, four hundred eighty million, eighty-six thousand, nine".