6490206866 has 32 divisors (see below), whose sum is σ = 11442670848. Its totient is φ = 2721882240.

The previous prime is 6490206823. The next prime is 6490206917. The reversal of 6490206866 is 6686020946.

It is a self number, because there is not a number n which added to its sum of digits gives 6490206866.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 833246 + ... + 840998.

It is an arithmetic number, because the mean of its divisors is an integer number (357583464).

Almost surely, 2^6490206866 is an apocalyptic number.

6490206866 is a deficient number, since it is larger than the sum of its proper divisors (4952463982).

6490206866 is a wasteful number, since it uses less digits than its factorization.

6490206866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10706.

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 6490206866 is about 80561.8201507389. The cubic root of 6490206866 is about 1865.3178513665.

The spelling of 6490206866 in words is "six billion, four hundred ninety million, two hundred six thousand, eight hundred sixty-six".