6644246431 has 8 divisors (see below), whose sum is σ = 6813483264. Its totient is φ = 6475351680.

The previous prime is 6644246381. The next prime is 6644246467. The reversal of 6644246431 is 1346424466.

6644246431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6644246431 - 2⁷ = 6644246303 is a prime.

It is a super-2 number, since 2×6644246431² = 88292021271712475522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6644246491) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45951 + ... + 124096.

It is an arithmetic number, because the mean of its divisors is an integer number (851685408).

Almost surely, 2^6644246431 is an apocalyptic number.

6644246431 is a deficient number, since it is larger than the sum of its proper divisors (169236833).

6644246431 is a wasteful number, since it uses less digits than its factorization.

6644246431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171041.

The product of its digits is 331776, while the sum is 40.

The square root of 6644246431 is about 81512.2471227484. The cubic root of 6644246431 is about 1879.9598632407.

The spelling of 6644246431 in words is "six billion, six hundred forty-four million, two hundred forty-six thousand, four hundred thirty-one".