12698600009 has 2 divisors, whose sum is σ = 12698600010. Its totient is φ = 12698600008.

The previous prime is 12698599999. The next prime is 12698600051. The reversal of 12698600009 is 90000689621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9264640009 + 3433960000 = 96253^2 + 58600^2 .

It is a cyclic number.

It is not a de Polignac number, because 12698600009 - 2¹² = 12698595913 is a prime.

It is a super-2 number, since 2×12698600009² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12698600309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6349300004 + 6349300005.

It is an arithmetic number, because the mean of its divisors is an integer number (6349300005).

Almost surely, 2^12698600009 is an apocalyptic number.

It is an amenable number.

12698600009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12698600009 is an equidigital number, since it uses as much as digits as its factorization.

12698600009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 12698600009 in words is "twelve billion, six hundred ninety-eight million, six hundred thousand, nine".