6446703637109 has 8 divisors (see below), whose sum is σ = 6727212293760. Its totient is φ = 6166213080016.

The previous prime is 6446703637079. The next prime is 6446703637111. The reversal of 6446703637109 is 9017363076446.

It is a happy number.

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 6446703637109 - 2¹⁶ = 6446703571573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6446703837109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3794522 + ... + 5224155.

It is an arithmetic number, because the mean of its divisors is an integer number (840901536720).

Almost surely, 2^{6446703637109} is an apocalyptic number.

It is an amenable number.

6446703637109 is a deficient number, since it is larger than the sum of its proper divisors (280508656651).

6446703637109 is a wasteful number, since it uses less digits than its factorization.

6446703637109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9049779.

The product of its (nonzero) digits is 13716864, while the sum is 56.

The spelling of 6446703637109 in words is "six trillion, four hundred forty-six billion, seven hundred three million, six hundred thirty-seven thousand, one hundred nine".