1115536538489 has 2 divisors, whose sum is σ = 1115536538490. Its totient is φ = 1115536538488.

The previous prime is 1115536538419. The next prime is 1115536538491. The reversal of 1115536538489 is 9848356355111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 781088299264 + 334448239225 = 883792^2 + 578315^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115536538489 - 2³⁶ = 1046817061753 is a prime.

Together with 1115536538491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1115536538419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557768269244 + 557768269245.

It is an arithmetic number, because the mean of its divisors is an integer number (557768269245).

Almost surely, 2^{1115536538489} is an apocalyptic number.

It is an amenable number.

1115536538489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115536538489 is an equidigital number, since it uses as much as digits as its factorization.

1115536538489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552000, while the sum is 59.

The spelling of 1115536538489 in words is "one trillion, one hundred fifteen billion, five hundred thirty-six million, five hundred thirty-eight thousand, four hundred eighty-nine".