2646485690 has 16 divisors (see below), whose sum is σ = 4801185792. Its totient is φ = 1050258384.

The previous prime is 2646485689. The next prime is 2646485713. The reversal of 2646485690 is 965846462.

It is a super-2 number, since 2×2646485690² = 14007773014749552200, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1040654 + ... + 1043193.

It is an arithmetic number, because the mean of its divisors is an integer number (300074112).

Almost surely, 2^2646485690 is an apocalyptic number.

2646485690 is a deficient number, since it is larger than the sum of its proper divisors (2154700102).

2646485690 is a wasteful number, since it uses less digits than its factorization.

2646485690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083981.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The square root of 2646485690 is about 51444.0053844955. The cubic root of 2646485690 is about 1383.2155099081.

The spelling of 2646485690 in words is "two billion, six hundred forty-six million, four hundred eighty-five thousand, six hundred ninety".