2580842721 has 8 divisors (see below), whose sum is σ = 3552127744. Its totient is φ = 1665059760.

The previous prime is 2580842707. The next prime is 2580842767. The reversal of 2580842721 is 1272480852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2580842721 - 2¹⁴ = 2580826337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2580842721.

It is not an unprimeable number, because it can be changed into a prime (2580842021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13875406 + ... + 13875591.

It is an arithmetic number, because the mean of its divisors is an integer number (444015968).

Almost surely, 2^2580842721 is an apocalyptic number.

It is an amenable number.

2580842721 is a deficient number, since it is larger than the sum of its proper divisors (971285023).

2580842721 is a wasteful number, since it uses less digits than its factorization.

2580842721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27751031.

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 2580842721 is about 50801.9952462499. The cubic root of 2580842721 is about 1371.6832846294.

The spelling of 2580842721 in words is "two billion, five hundred eighty million, eight hundred forty-two thousand, seven hundred twenty-one".