86255895202581 has 16 divisors (see below), whose sum is σ = 123956389255104. Its totient is φ = 53036934964224.

The previous prime is 86255895202537. The next prime is 86255895202591. The reversal of 86255895202581 is 18520259855268.

It is not a de Polignac number, because 86255895202581 - 2¹¹ = 86255895200533 is a prime.

It is a super-2 number, since 2×86255895202581² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86255895202531) 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, 908617131 + ... + 908712056.

It is an arithmetic number, because the mean of its divisors is an integer number (7747274328444).

Almost surely, 2^{86255895202581} is an apocalyptic number.

It is an amenable number.

86255895202581 is a deficient number, since it is larger than the sum of its proper divisors (37700494052523).

86255895202581 is a wasteful number, since it uses less digits than its factorization.

86255895202581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817330420.

The product of its (nonzero) digits is 138240000, while the sum is 66.

The spelling of 86255895202581 in words is "eighty-six trillion, two hundred fifty-five billion, eight hundred ninety-five million, two hundred two thousand, five hundred eighty-one".