6649654969 has 8 divisors (see below), whose sum is σ = 6871979520. Its totient is φ = 6427819200.

The previous prime is 6649654967. The next prime is 6649655027. The reversal of 6649654969 is 9694569466.

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 6649654969 - 2¹ = 6649654967 is a prime.

It is a super-2 number, since 2×6649654969² = 88435822413492781922, which contains 22 as substring.

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 6649654969.

It is not an unprimeable number, because it can be changed into a prime (6649654961) 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, 94429 + ... + 149050.

It is an arithmetic number, because the mean of its divisors is an integer number (858997440).

Almost surely, 2^6649654969 is an apocalyptic number.

It is an amenable number.

6649654969 is a deficient number, since it is larger than the sum of its proper divisors (222324551).

6649654969 is a wasteful number, since it uses less digits than its factorization.

6649654969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244391.

The product of its digits is 75582720, while the sum is 64.

The square root of 6649654969 is about 81545.4166032647. The cubic root of 6649654969 is about 1880.4698321177.

The spelling of 6649654969 in words is "six billion, six hundred forty-nine million, six hundred fifty-four thousand, nine hundred sixty-nine".