6441491001 has 8 divisors (see below), whose sum is σ = 9369441504. Its totient is φ = 3903933920.

The previous prime is 6441490981. The next prime is 6441491003. The reversal of 6441491001 is 1001941446.

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 6441491001 - 2⁵ = 6441490969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6441491001.

It is not an unprimeable number, because it can be changed into a prime (6441491003) 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, 97598316 + ... + 97598381.

It is an arithmetic number, because the mean of its divisors is an integer number (1171180188).

Almost surely, 2^6441491001 is an apocalyptic number.

It is an amenable number.

6441491001 is a deficient number, since it is larger than the sum of its proper divisors (2927950503).

6441491001 is a wasteful number, since it uses less digits than its factorization.

6441491001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195196711.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 6441491001 is about 80258.8998242563. The cubic root of 6441491001 is about 1860.6390644244.

The spelling of 6441491001 in words is "six billion, four hundred forty-one million, four hundred ninety-one thousand, one".