85811257844358 has 16 divisors (see below), whose sum is σ = 174860676362736. Its totient is φ = 28064059169120.

The previous prime is 85811257844309. The next prime is 85811257844393. The reversal of 85811257844358 is 85344875211858.

It is a junction number, because it is equal to n+sod(n) for n = 85811257844292 and 85811257844301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134923361073 + ... + 134923361708.

It is an arithmetic number, because the mean of its divisors is an integer number (10928792272671).

Almost surely, 2^{85811257844358} is an apocalyptic number.

85811257844358 is an abundant number, since it is smaller than the sum of its proper divisors (89049418518378).

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

85811257844358 is a wasteful number, since it uses less digits than its factorization.

85811257844358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269846722839.

The product of its digits is 344064000, while the sum is 69.

The spelling of 85811257844358 in words is "eighty-five trillion, eight hundred eleven billion, two hundred fifty-seven million, eight hundred forty-four thousand, three hundred fifty-eight".