3849945969 has 8 divisors (see below), whose sum is σ = 5133953920. Its totient is φ = 2566284336.

The previous prime is 3849945943. The next prime is 3849945971. The reversal of 3849945969 is 9695499483.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3849945969 - 2¹¹ = 3849943921 is a prime.

It is a super-2 number, since 2×3849945969² = 29644167928438697922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3849945929) 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, 59422 + ... + 105975.

It is an arithmetic number, because the mean of its divisors is an integer number (641744240).

Almost surely, 2^3849945969 is an apocalyptic number.

It is an amenable number.

3849945969 is a deficient number, since it is larger than the sum of its proper divisors (1284007951).

3849945969 is a wasteful number, since it uses less digits than its factorization.

3849945969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173159.

The product of its digits is 75582720, while the sum is 66.

The square root of 3849945969 is about 62047.9328342210. The cubic root of 3849945969 is about 1567.2978753390.

The spelling of 3849945969 in words is "three billion, eight hundred forty-nine million, nine hundred forty-five thousand, nine hundred sixty-nine".