12651400193 has 2 divisors, whose sum is σ = 12651400194. Its totient is φ = 12651400192.

The previous prime is 12651400163. The next prime is 12651400277. The reversal of 12651400193 is 39100415621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6958395889 + 5693004304 = 83417^2 + 75452^2 .

It is a cyclic number.

It is not a de Polignac number, because 12651400193 - 2¹⁰ = 12651399169 is a prime.

It is not a weakly prime, because it can be changed into another prime (12651400163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6325700096 + 6325700097.

It is an arithmetic number, because the mean of its divisors is an integer number (6325700097).

Almost surely, 2^12651400193 is an apocalyptic number.

It is an amenable number.

12651400193 is a deficient number, since it is larger than the sum of its proper divisors (1).

12651400193 is an equidigital number, since it uses as much as digits as its factorization.

12651400193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 12651400193 in words is "twelve billion, six hundred fifty-one million, four hundred thousand, one hundred ninety-three".