6448755571 has 8 divisors (see below), whose sum is σ = 7124968224. Its totient is φ = 5805528960.

The previous prime is 6448755569. The next prime is 6448755613. The reversal of 6448755571 is 1755578446.

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 6448755571 - 2¹ = 6448755569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6448755671) 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 7 ways as a sum of consecutive naturals, for example, 8246100 + ... + 8246881.

It is an arithmetic number, because the mean of its divisors is an integer number (890621028).

Almost surely, 2^6448755571 is an apocalyptic number.

6448755571 is a deficient number, since it is larger than the sum of its proper divisors (676212653).

6448755571 is a wasteful number, since it uses less digits than its factorization.

6448755571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16493021.

The product of its digits is 4704000, while the sum is 52.

The square root of 6448755571 is about 80304.1441707712. The cubic root of 6448755571 is about 1861.3382640670.

The spelling of 6448755571 in words is "six billion, four hundred forty-eight million, seven hundred fifty-five thousand, five hundred seventy-one".