6499449946 has 8 divisors (see below), whose sum is σ = 10635463584. Its totient is φ = 2954295420.

The previous prime is 6499449937. The next prime is 6499449949.

6499449946 is nontrivially palindromic in base 10.

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

It is not an unprimeable number, because it can be changed into a prime (6499449949) 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 3 ways as a sum of consecutive naturals, for example, 147714750 + ... + 147714793.

It is an arithmetic number, because the mean of its divisors is an integer number (1329432948).

Almost surely, 2^6499449946 is an apocalyptic number.

6499449946 is a deficient number, since it is larger than the sum of its proper divisors (4136013638).

6499449946 is a wasteful number, since it uses less digits than its factorization.

6499449946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295429556.

The product of its digits is 60466176, while the sum is 64.

The square root of 6499449946 is about 80619.1661207185. The cubic root of 6499449946 is about 1866.2029337777.

The spelling of 6499449946 in words is "six billion, four hundred ninety-nine million, four hundred forty-nine thousand, nine hundred forty-six".