4644709445 has 4 divisors (see below), whose sum is σ = 5573651340. Its totient is φ = 3715767552.

The previous prime is 4644709441. The next prime is 4644709547. The reversal of 4644709445 is 5449074464.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1745317729 + 2899391716 = 41777^2 + 53846^2 .

It is a cyclic number.

It is not a de Polignac number, because 4644709445 - 2² = 4644709441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4644709445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4644709441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464470940 + ... + 464470949.

It is an arithmetic number, because the mean of its divisors is an integer number (1393412835).

Almost surely, 2^4644709445 is an apocalyptic number.

It is an amenable number.

4644709445 is a deficient number, since it is larger than the sum of its proper divisors (928941895).

4644709445 is an equidigital number, since it uses as much as digits as its factorization.

4644709445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928941894.

The product of its (nonzero) digits is 1935360, while the sum is 47.

The square root of 4644709445 is about 68152.1052132654. The cubic root of 4644709445 is about 1668.4742833156.

The spelling of 4644709445 in words is "four billion, six hundred forty-four million, seven hundred nine thousand, four hundred forty-five".