6441105261 has 16 divisors (see below), whose sum is σ = 8638056000. Its totient is φ = 4269186048.

The previous prime is 6441105247. The next prime is 6441105269. The reversal of 6441105261 is 1625011446.

It is not a de Polignac number, because 6441105261 - 2⁷ = 6441105133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6441105269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354445 + ... + 372173.

It is an arithmetic number, because the mean of its divisors is an integer number (539878500).

Almost surely, 2^6441105261 is an apocalyptic number.

It is an amenable number.

6441105261 is a deficient number, since it is larger than the sum of its proper divisors (2196950739).

6441105261 is a wasteful number, since it uses less digits than its factorization.

6441105261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18428.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 6441105261 is about 80256.4966902992. The cubic root of 6441105261 is about 1860.6019230628.

The spelling of 6441105261 in words is "six billion, four hundred forty-one million, one hundred five thousand, two hundred sixty-one".