6649672967 has 16 divisors (see below), whose sum is σ = 7851809280. Its totient is φ = 5512429728.

The previous prime is 6649672963. The next prime is 6649672973. The reversal of 6649672967 is 7692769466.

It is a cyclic number.

It is not a de Polignac number, because 6649672967 - 2² = 6649672963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6649672963) 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 15 ways as a sum of consecutive naturals, for example, 33617 + ... + 120122.

It is an arithmetic number, because the mean of its divisors is an integer number (490738080).

Almost surely, 2^6649672967 is an apocalyptic number.

6649672967 is a deficient number, since it is larger than the sum of its proper divisors (1202136313).

6649672967 is a wasteful number, since it uses less digits than its factorization.

6649672967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153950.

The product of its digits is 41150592, while the sum is 62.

The square root of 6649672967 is about 81545.5269588713. The cubic root of 6649672967 is about 1880.4715286802.

The spelling of 6649672967 in words is "six billion, six hundred forty-nine million, six hundred seventy-two thousand, nine hundred sixty-seven".