2580865005644 has 12 divisors (see below), whose sum is σ = 4516538241768. Its totient is φ = 1290425508000.

The previous prime is 2580865005553. The next prime is 2580865005661. The reversal of 2580865005644 is 4465005680852.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869402 + ... + 2432609.

It is an arithmetic number, because the mean of its divisors is an integer number (376378186814).

Almost surely, 2^{2580865005644} is an apocalyptic number.

It is an amenable number.

2580865005644 is a deficient number, since it is larger than the sum of its proper divisors (1935673236124).

2580865005644 is a wasteful number, since it uses less digits than its factorization.

2580865005644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497416 (or 3497414 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 53.

The spelling of 2580865005644 in words is "two trillion, five hundred eighty billion, eight hundred sixty-five million, five thousand, six hundred forty-four".