11390567591449 has 4 divisors (see below), whose sum is σ = 11390575940964. Its totient is φ = 11390559241936.

The previous prime is 11390567591411. The next prime is 11390567591483. The reversal of 11390567591449 is 94419576509311.

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 10236032384400 + 1154535207049 = 3199380^2 + 1074493^2 .

It is a cyclic number.

It is not a de Polignac number, because 11390567591449 - 2¹⁵ = 11390567558681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11390567594449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1598482 + ... + 5033515.

It is an arithmetic number, because the mean of its divisors is an integer number (2847643985241).

Almost surely, 2^{11390567591449} is an apocalyptic number.

It is an amenable number.

11390567591449 is a deficient number, since it is larger than the sum of its proper divisors (8349515).

11390567591449 is an equidigital number, since it uses as much as digits as its factorization.

11390567591449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8349514.

The product of its (nonzero) digits is 36741600, while the sum is 64.

The spelling of 11390567591449 in words is "eleven trillion, three hundred ninety billion, five hundred sixty-seven million, five hundred ninety-one thousand, four hundred forty-nine".