2448121919 has 4 divisors (see below), whose sum is σ = 2450901600. Its totient is φ = 2445342240.

The previous prime is 2448121901. The next prime is 2448121933. The reversal of 2448121919 is 9191218442.

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

It is a cyclic number.

It is not a de Polignac number, because 2448121919 - 2¹² = 2448117823 is a prime.

It is a super-2 number, since 2×2448121919² = 11986601860576485122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2448121969) 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, 1388519 + ... + 1390280.

It is an arithmetic number, because the mean of its divisors is an integer number (612725400).

Almost surely, 2^2448121919 is an apocalyptic number.

2448121919 is a deficient number, since it is larger than the sum of its proper divisors (2779681).

2448121919 is an equidigital number, since it uses as much as digits as its factorization.

2448121919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779680.

The product of its digits is 41472, while the sum is 41.

The square root of 2448121919 is about 49478.4995629415. The cubic root of 2448121919 is about 1347.7551937327.

The spelling of 2448121919 in words is "two billion, four hundred forty-eight million, one hundred twenty-one thousand, nine hundred nineteen".