6990209146 has 16 divisors (see below), whose sum is σ = 10781926848. Its totient is φ = 3396882400.

The previous prime is 6990209113. The next prime is 6990209153. The reversal of 6990209146 is 6419020996.

It is a junction number, because it is equal to n+sod(n) for n = 6990209096 and 6990209105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140500 + ... + 183631.

It is an arithmetic number, because the mean of its divisors is an integer number (673870428).

Almost surely, 2^6990209146 is an apocalyptic number.

6990209146 is a deficient number, since it is larger than the sum of its proper divisors (3791717702).

6990209146 is a wasteful number, since it uses less digits than its factorization.

6990209146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324437.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 6990209146 is about 83607.4706351053. The cubic root of 6990209146 is about 1912.0388985407.

The spelling of 6990209146 in words is "six billion, nine hundred ninety million, two hundred nine thousand, one hundred forty-six".