12906535601 has 2 divisors, whose sum is σ = 12906535602. Its totient is φ = 12906535600.

The previous prime is 12906535597. The next prime is 12906535633. The reversal of 12906535601 is 10653560921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11055471025 + 1851064576 = 105145^2 + 43024^2 .

It is a cyclic number.

It is not a de Polignac number, because 12906535601 - 2² = 12906535597 is a prime.

It is a super-2 number, since 2×12906535601² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12906565601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6453267800 + 6453267801.

It is an arithmetic number, because the mean of its divisors is an integer number (6453267801).

Almost surely, 2^12906535601 is an apocalyptic number.

It is an amenable number.

12906535601 is a deficient number, since it is larger than the sum of its proper divisors (1).

12906535601 is an equidigital number, since it uses as much as digits as its factorization.

12906535601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 38.

The spelling of 12906535601 in words is "twelve billion, nine hundred six million, five hundred thirty-five thousand, six hundred one".