2595877606581 has 32 divisors (see below), whose sum is σ = 4007800946688. Its totient is φ = 1463887598400.

The previous prime is 2595877606559. The next prime is 2595877606589. The reversal of 2595877606581 is 1856067785952.

It is not a de Polignac number, because 2595877606581 - 2⁷ = 2595877606453 is a prime.

It is a super-2 number, since 2×2595877606581² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2595877606589) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1342165 + ... + 2644458.

It is an arithmetic number, because the mean of its divisors is an integer number (125243779584).

Almost surely, 2^{2595877606581} is an apocalyptic number.

2595877606581 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2595877606581 is a deficient number, since it is larger than the sum of its proper divisors (1411923340107).

2595877606581 is a wasteful number, since it uses less digits than its factorization.

2595877606581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987041.

The product of its (nonzero) digits is 254016000, while the sum is 69.

The spelling of 2595877606581 in words is "two trillion, five hundred ninety-five billion, eight hundred seventy-seven million, six hundred six thousand, five hundred eighty-one".