6441391011 has 8 divisors (see below), whose sum is σ = 9369296064. Its totient is φ = 3903873320.

The previous prime is 6441390983. The next prime is 6441391051. The reversal of 6441391011 is 1101931446.

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 6441391011 - 2⁵ = 6441390979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6441391011.

It is not an unprimeable number, because it can be changed into a prime (6441391051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97596801 + ... + 97596866.

It is an arithmetic number, because the mean of its divisors is an integer number (1171162008).

Almost surely, 2^6441391011 is an apocalyptic number.

6441391011 is a deficient number, since it is larger than the sum of its proper divisors (2927905053).

6441391011 is a wasteful number, since it uses less digits than its factorization.

6441391011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195193681.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 6441391011 is about 80258.2769002674. The cubic root of 6441391011 is about 1860.6294369297.

The spelling of 6441391011 in words is "six billion, four hundred forty-one million, three hundred ninety-one thousand, eleven".