2585261595287 has 16 divisors (see below), whose sum is σ = 2960007327552. Its totient is φ = 2211873592320.

The previous prime is 2585261595271. The next prime is 2585261595353. The reversal of 2585261595287 is 7825951625852.

It is not a de Polignac number, because 2585261595287 - 2⁴ = 2585261595271 is a prime.

It is a super-2 number, since 2×2585261595287² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585261595187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15278993 + ... + 15447269.

It is an arithmetic number, because the mean of its divisors is an integer number (185000457972).

Almost surely, 2^{2585261595287} is an apocalyptic number.

2585261595287 is a deficient number, since it is larger than the sum of its proper divisors (374745732265).

2585261595287 is a wasteful number, since it uses less digits than its factorization.

2585261595287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172298.

The product of its digits is 120960000, while the sum is 65.

The spelling of 2585261595287 in words is "two trillion, five hundred eighty-five billion, two hundred sixty-one million, five hundred ninety-five thousand, two hundred eighty-seven".