6464044312503 has 8 divisors (see below), whose sum is σ = 8635658415600. Its totient is φ = 4300896542208.

The previous prime is 6464044312501. The next prime is 6464044312513. The reversal of 6464044312503 is 3052134404646.

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

It is not a de Polignac number, because 6464044312503 - 2¹ = 6464044312501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464044312501) 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, 2116581418 + ... + 2116584471.

It is an arithmetic number, because the mean of its divisors is an integer number (1079457301950).

Almost surely, 2^{6464044312503} is an apocalyptic number.

6464044312503 is a deficient number, since it is larger than the sum of its proper divisors (2171614103097).

6464044312503 is a wasteful number, since it uses less digits than its factorization.

6464044312503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233166401.

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 6464044312503 in words is "six trillion, four hundred sixty-four billion, forty-four million, three hundred twelve thousand, five hundred three".