85913187841 has 4 divisors (see below), whose sum is σ = 92521894612. Its totient is φ = 79304481072.

The previous prime is 85913187817. The next prime is 85913187907. The reversal of 85913187841 is 14878131958.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22612640625 + 63300547216 = 150375^2 + 251596^2 .

It is a cyclic number.

It is not a de Polignac number, because 85913187841 - 2⁵ = 85913187809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85913181841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3304353366 + ... + 3304353391.

It is an arithmetic number, because the mean of its divisors is an integer number (23130473653).

Almost surely, 2^85913187841 is an apocalyptic number.

It is an amenable number.

85913187841 is a deficient number, since it is larger than the sum of its proper divisors (6608706771).

85913187841 is a wasteful number, since it uses less digits than its factorization.

85913187841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6608706770.

The product of its digits is 1935360, while the sum is 55.

The spelling of 85913187841 in words is "eighty-five billion, nine hundred thirteen million, one hundred eighty-seven thousand, eight hundred forty-one".