6441272755 has 8 divisors (see below), whose sum is σ = 7778760912. Its totient is φ = 5120195808.

The previous prime is 6441272711. The next prime is 6441272767. The reversal of 6441272755 is 5572721446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6441272755 - 2⁷ = 6441272627 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4101937 + ... + 4103506.

It is an arithmetic number, because the mean of its divisors is an integer number (972345114).

Almost surely, 2^6441272755 is an apocalyptic number.

6441272755 is a deficient number, since it is larger than the sum of its proper divisors (1337488157).

6441272755 is a wasteful number, since it uses less digits than its factorization.

6441272755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8205605.

The product of its digits is 470400, while the sum is 43.

The square root of 6441272755 is about 80257.5401753630. The cubic root of 6441272755 is about 1860.6180505722.

The spelling of 6441272755 in words is "six billion, four hundred forty-one million, two hundred seventy-two thousand, seven hundred fifty-five".