6464244604044 has 12 divisors (see below), whose sum is σ = 15083237409464. Its totient is φ = 2154748201344.

The previous prime is 6464244604033. The next prime is 6464244604087. The reversal of 6464244604044 is 4404064424646.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 6464244603984 and 6464244604002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269343525157 + ... + 269343525180.

Almost surely, 2^{6464244604044} is an apocalyptic number.

It is an amenable number.

6464244604044 is an abundant number, since it is smaller than the sum of its proper divisors (8618992805420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6464244604044 is a wasteful number, since it uses less digits than its factorization.

6464244604044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538687050344 (or 538687050342 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 48.

The spelling of 6464244604044 in words is "six trillion, four hundred sixty-four billion, two hundred forty-four million, six hundred four thousand, forty-four".