1115450235649 has 4 divisors (see below), whose sum is σ = 1115452348164. Its totient is φ = 1115448123136.

The previous prime is 1115450235547. The next prime is 1115450235661. The reversal of 1115450235649 is 9465320545111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 400444699249 + 715005536400 = 632807^2 + 845580^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115450235649 - 2¹⁷ = 1115450104577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1115450235599 and 1115450235608.

It is not an unprimeable number, because it can be changed into a prime (1115450235749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505449 + ... + 1576825.

It is an arithmetic number, because the mean of its divisors is an integer number (278863087041).

Almost surely, 2^{1115450235649} is an apocalyptic number.

It is an amenable number.

1115450235649 is a deficient number, since it is larger than the sum of its proper divisors (2112515).

1115450235649 is a wasteful number, since it uses less digits than its factorization.

1115450235649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112514.

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 1115450235649 in words is "one trillion, one hundred fifteen billion, four hundred fifty million, two hundred thirty-five thousand, six hundred forty-nine".