85881280658136 has 16 divisors (see below), whose sum is σ = 214703201645400. Its totient is φ = 28627093552704.

The previous prime is 85881280658119. The next prime is 85881280658149. The reversal of 85881280658136 is 63185608218858.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1789193347021 + ... + 1789193347068.

Almost surely, 2^{85881280658136} is an apocalyptic number.

It is an amenable number.

85881280658136 is an abundant number, since it is smaller than the sum of its proper divisors (128821920987264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85881280658136 is a wasteful number, since it uses less digits than its factorization.

85881280658136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578386694098 (or 3578386694094 counting only the distinct ones).

The product of its (nonzero) digits is 176947200, while the sum is 69.

The spelling of 85881280658136 in words is "eighty-five trillion, eight hundred eighty-one billion, two hundred eighty million, six hundred fifty-eight thousand, one hundred thirty-six".