6985339306009 has 2 divisors, whose sum is σ = 6985339306010. Its totient is φ = 6985339306008.

The previous prime is 6985339305977. The next prime is 6985339306013. The reversal of 6985339306009 is 9006039335896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5710799913984 + 1274539392025 = 2389728^2 + 1128955^2 .

It is a cyclic number.

It is not a de Polignac number, because 6985339306009 - 2⁵ = 6985339305977 is a prime.

It is not a weakly prime, because it can be changed into another prime (6985339306909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3492669653004 + 3492669653005.

It is an arithmetic number, because the mean of its divisors is an integer number (3492669653005).

Almost surely, 2^{6985339306009} is an apocalyptic number.

It is an amenable number.

6985339306009 is a deficient number, since it is larger than the sum of its proper divisors (1).

6985339306009 is an equidigital number, since it uses as much as digits as its factorization.

6985339306009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28343520, while the sum is 61.

The spelling of 6985339306009 in words is "six trillion, nine hundred eighty-five billion, three hundred thirty-nine million, three hundred six thousand, nine".