2820558964 has 12 divisors (see below), whose sum is σ = 4950205344. Its totient is φ = 1406214584.

The previous prime is 2820558941. The next prime is 2820558967. The reversal of 2820558964 is 4698550282.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820558967) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1014664 + ... + 1017439.

It is an arithmetic number, because the mean of its divisors is an integer number (412517112).

Almost surely, 2^2820558964 is an apocalyptic number.

It is an amenable number.

2820558964 is a deficient number, since it is larger than the sum of its proper divisors (2129646380).

2820558964 is a wasteful number, since it uses less digits than its factorization.

2820558964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032454 (or 2032452 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 49.

The square root of 2820558964 is about 53108.9348791708. The cubic root of 2820558964 is about 1412.9009843789.

The spelling of 2820558964 in words is "two billion, eight hundred twenty million, five hundred fifty-eight thousand, nine hundred sixty-four".