11248719217 has 4 divisors (see below), whose sum is σ = 11263501476. Its totient is φ = 11233936960.

The previous prime is 11248719211. The next prime is 11248719221. The reversal of 11248719217 is 71291784211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12931216 + 11235788001 = 3596^2 + 105999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11248719217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11248719211) 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, 7389988 + ... + 7391509.

It is an arithmetic number, because the mean of its divisors is an integer number (2815875369).

Almost surely, 2^11248719217 is an apocalyptic number.

It is an amenable number.

11248719217 is a deficient number, since it is larger than the sum of its proper divisors (14782259).

11248719217 is an equidigital number, since it uses as much as digits as its factorization.

11248719217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14782258.

The product of its digits is 56448, while the sum is 43.

The spelling of 11248719217 in words is "eleven billion, two hundred forty-eight million, seven hundred nineteen thousand, two hundred seventeen".