2580758661 has 32 divisors (see below), whose sum is σ = 3928393728. Its totient is φ = 1492945920.

The previous prime is 2580758641. The next prime is 2580758681. The reversal of 2580758661 is 1668570852.

It is an interprime number because it is at equal distance from previous prime (2580758641) and next prime (2580758681).

It is not a de Polignac number, because 2580758661 - 2⁵ = 2580758629 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 2580758661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2580758641) 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 31 ways as a sum of consecutive naturals, for example, 718891 + ... + 722471.

It is an arithmetic number, because the mean of its divisors is an integer number (122762304).

Almost surely, 2^2580758661 is an apocalyptic number.

It is an amenable number.

2580758661 is a deficient number, since it is larger than the sum of its proper divisors (1347635067).

2580758661 is a wasteful number, since it uses less digits than its factorization.

2580758661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4701.

The product of its (nonzero) digits is 806400, while the sum is 48.

The square root of 2580758661 is about 50801.1679098030. The cubic root of 2580758661 is about 1371.6683922136.

The spelling of 2580758661 in words is "two billion, five hundred eighty million, seven hundred fifty-eight thousand, six hundred sixty-one".