4323985649 has 8 divisors (see below), whose sum is σ = 4702077288. Its totient is φ = 3959642880.

The previous prime is 4323985613. The next prime is 4323985661. The reversal of 4323985649 is 9465893234.

It can be written as a sum of positive squares in 4 ways, for example, as 1306461025 + 3017524624 = 36145^2 + 54932^2 .

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 4323985649 - 2¹² = 4323981553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4323985649.

It is not an unprimeable number, because it can be changed into a prime (4323985669) 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, 3436562 + ... + 3437819.

It is an arithmetic number, because the mean of its divisors is an integer number (587759661).

Almost surely, 2^4323985649 is an apocalyptic number.

It is an amenable number.

4323985649 is a deficient number, since it is larger than the sum of its proper divisors (378091639).

4323985649 is a wasteful number, since it uses less digits than its factorization.

4323985649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6874435.

The product of its digits is 5598720, while the sum is 53.

The square root of 4323985649 is about 65757.0197697554. The cubic root of 4323985649 is about 1629.1512824770.

The spelling of 4323985649 in words is "four billion, three hundred twenty-three million, nine hundred eighty-five thousand, six hundred forty-nine".