6448861411 has 4 divisors (see below), whose sum is σ = 6449649192. Its totient is φ = 6448073632.

The previous prime is 6448861381. The next prime is 6448861439. The reversal of 6448861411 is 1141688446.

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 6448861411 - 2¹⁹ = 6448337123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6448862411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381481 + ... + 398026.

It is an arithmetic number, because the mean of its divisors is an integer number (1612412298).

Almost surely, 2^6448861411 is an apocalyptic number.

6448861411 is a deficient number, since it is larger than the sum of its proper divisors (787781).

6448861411 is an equidigital number, since it uses as much as digits as its factorization.

6448861411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787780.

The product of its digits is 147456, while the sum is 43.

The square root of 6448861411 is about 80304.8031627001. The cubic root of 6448861411 is about 1861.3484470634.

The spelling of 6448861411 in words is "six billion, four hundred forty-eight million, eight hundred sixty-one thousand, four hundred eleven".