11448350591 has 4 divisors (see below), whose sum is σ = 11450068800. Its totient is φ = 11446632384.

The previous prime is 11448350587. The next prime is 11448350609. The reversal of 11448350591 is 19505384411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19505384411 = 50221 ⋅388391.

It is a cyclic number.

It is not a de Polignac number, because 11448350591 - 2² = 11448350587 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11448350191) 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, 849071 + ... + 862448.

It is an arithmetic number, because the mean of its divisors is an integer number (2862517200).

Almost surely, 2^11448350591 is an apocalyptic number.

11448350591 is a deficient number, since it is larger than the sum of its proper divisors (1718209).

11448350591 is an equidigital number, since it uses as much as digits as its factorization.

11448350591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718208.

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 11448350591 in words is "eleven billion, four hundred forty-eight million, three hundred fifty thousand, five hundred ninety-one".