6631319849 has 16 divisors (see below), whose sum is σ = 8270954496. Its totient is φ = 5165178000.

The previous prime is 6631319839. The next prime is 6631319861. The reversal of 6631319849 is 9489131366.

It is a cyclic number.

It is not a de Polignac number, because 6631319849 - 2³² = 2336352553 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6631319797 and 6631319806.

It is not an unprimeable number, because it can be changed into a prime (6631319839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190874 + ... + 222924.

It is an arithmetic number, because the mean of its divisors is an integer number (516934656).

Almost surely, 2^6631319849 is an apocalyptic number.

It is an amenable number.

6631319849 is a deficient number, since it is larger than the sum of its proper divisors (1639634647).

6631319849 is a wasteful number, since it uses less digits than its factorization.

6631319849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34756.

The product of its digits is 839808, while the sum is 50.

The square root of 6631319849 is about 81432.9162501258. The cubic root of 6631319849 is about 1878.7398988512.

The spelling of 6631319849 in words is "six billion, six hundred thirty-one million, three hundred nineteen thousand, eight hundred forty-nine".