2580525319681 has 8 divisors (see below), whose sum is σ = 2584698304320. Its totient is φ = 2576353012752.

The previous prime is 2580525319643. The next prime is 2580525319699. The reversal of 2580525319681 is 1869135250852.

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

It is a cyclic number.

It is not a de Polignac number, because 2580525319681 - 2¹¹ = 2580525317633 is a prime.

It is a super-2 number, since 2×2580525319681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2580525319601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7750666 + ... + 8076748.

It is an arithmetic number, because the mean of its divisors is an integer number (323087288040).

Almost surely, 2^{2580525319681} is an apocalyptic number.

It is an amenable number.

2580525319681 is a deficient number, since it is larger than the sum of its proper divisors (4172984639).

2580525319681 is a wasteful number, since it uses less digits than its factorization.

2580525319681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338855.

The product of its (nonzero) digits is 5184000, while the sum is 55.

The spelling of 2580525319681 in words is "two trillion, five hundred eighty billion, five hundred twenty-five million, three hundred nineteen thousand, six hundred eighty-one".