85885826281 has 4 divisors (see below), whose sum is σ = 85887184464. Its totient is φ = 85884468100.

The previous prime is 85885826267. The next prime is 85885826287. The reversal of 85885826281 is 18262858858.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18262858858 = 2 ⋅9131429429.

It is a cyclic number.

It is not a de Polignac number, because 85885826281 - 2⁵ = 85885826249 is a prime.

It is a super-2 number, since 2×85885826281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85885826287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579355 + ... + 712336.

It is an arithmetic number, because the mean of its divisors is an integer number (21471796116).

Almost surely, 2^85885826281 is an apocalyptic number.

It is an amenable number.

85885826281 is a deficient number, since it is larger than the sum of its proper divisors (1358183).

85885826281 is a wasteful number, since it uses less digits than its factorization.

85885826281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358182.

The product of its digits is 19660800, while the sum is 61.

The spelling of 85885826281 in words is "eighty-five billion, eight hundred eighty-five million, eight hundred twenty-six thousand, two hundred eighty-one".