6344664436 has 12 divisors (see below), whose sum is σ = 12112541280. Its totient is φ = 2883938360.

The previous prime is 6344664427. The next prime is 6344664461.

It is a happy number.

6344664436 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×6344664436³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72098416 + ... + 72098503.

It is an arithmetic number, because the mean of its divisors is an integer number (1009378440).

Almost surely, 2^6344664436 is an apocalyptic number.

It is an amenable number.

6344664436 is a deficient number, since it is larger than the sum of its proper divisors (5767876844).

6344664436 is a wasteful number, since it uses less digits than its factorization.

6344664436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144196934 (or 144196932 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 46.

The square root of 6344664436 is about 79653.4019110295. The cubic root of 6344664436 is about 1851.2691010498.

The spelling of 6344664436 in words is "six billion, three hundred forty-four million, six hundred sixty-four thousand, four hundred thirty-six".