2601820564 has 12 divisors (see below), whose sum is σ = 5203641184. Its totient is φ = 1115065944.

The previous prime is 2601820541. The next prime is 2601820577. The reversal of 2601820564 is 4650281062.

2601820564 is an admirable number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 46461054 + ... + 46461109.

Almost surely, 2^2601820564 is an apocalyptic number.

It is an amenable number.

2601820564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2601820564 is a wasteful number, since it uses less digits than its factorization.

2601820564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92922174 (or 92922172 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 2601820564 is about 51008.0441107087. The cubic root of 2601820564 is about 1375.3897410224.

The spelling of 2601820564 in words is "two billion, six hundred one million, eight hundred twenty thousand, five hundred sixty-four".