6346649331 has 48 divisors (see below), whose sum is σ = 10287190368. Its totient is φ = 3736627200.

The previous prime is 6346649327. The next prime is 6346649339. The reversal of 6346649331 is 1339466436.

6346649331 is a `hidden beast` number, since 634 + 6 + 6 + 4 + 9 + 3 + 3 + 1 = 666.

It is not a de Polignac number, because 6346649331 - 2² = 6346649327 is a prime.

It is a super-2 number, since 2×6346649331² = 80559915461365495122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6346649339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3739075 + ... + 3740771.

It is an arithmetic number, because the mean of its divisors is an integer number (214316466).

Almost surely, 2^6346649331 is an apocalyptic number.

6346649331 is a deficient number, since it is larger than the sum of its proper divisors (3940541037).

6346649331 is a wasteful number, since it uses less digits than its factorization.

6346649331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772 (or 2769 counting only the distinct ones).

The product of its digits is 839808, while the sum is 45.

The square root of 6346649331 is about 79665.8605112629. The cubic root of 6346649331 is about 1851.4621341984.

The spelling of 6346649331 in words is "six billion, three hundred forty-six million, six hundred forty-nine thousand, three hundred thirty-one".