12400524236417 has 2 divisors, whose sum is σ = 12400524236418. Its totient is φ = 12400524236416.

The previous prime is 12400524236407. The next prime is 12400524236423. The reversal of 12400524236417 is 71463242500421.

12400524236417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12370351156801 + 30173079616 = 3517151^2 + 173704^2 .

It is a cyclic number.

It is not a de Polignac number, because 12400524236417 - 2¹⁴ = 12400524220033 is a prime.

It is not a weakly prime, because it can be changed into another prime (12400524236407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6200262118208 + 6200262118209.

It is an arithmetic number, because the mean of its divisors is an integer number (6200262118209).

Almost surely, 2^{12400524236417} is an apocalyptic number.

It is an amenable number.

12400524236417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12400524236417 is an equidigital number, since it uses as much as digits as its factorization.

12400524236417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 41.

Adding to 12400524236417 its reverse (71463242500421), we get a palindrome (83863766736838).

The spelling of 12400524236417 in words is "twelve trillion, four hundred billion, five hundred twenty-four million, two hundred thirty-six thousand, four hundred seventeen".