13504367248409 has 2 divisors, whose sum is σ = 13504367248410. Its totient is φ = 13504367248408.

The previous prime is 13504367248403. The next prime is 13504367248423. The reversal of 13504367248409 is 90484276340531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12898153960000 + 606213288409 = 3591400^2 + 778597^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13504367248409 is a prime.

It is not a weakly prime, because it can be changed into another prime (13504367248403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6752183624204 + 6752183624205.

It is an arithmetic number, because the mean of its divisors is an integer number (6752183624205).

It is a 1-persistent number, because it is pandigital, but 2⋅13504367248409 = 27008734496818 is not.

Almost surely, 2^{13504367248409} is an apocalyptic number.

It is an amenable number.

13504367248409 is a deficient number, since it is larger than the sum of its proper divisors (1).

13504367248409 is an equidigital number, since it uses as much as digits as its factorization.

13504367248409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17418240, while the sum is 56.

The spelling of 13504367248409 in words is "thirteen trillion, five hundred four billion, three hundred sixty-seven million, two hundred forty-eight thousand, four hundred nine".