9985195841 has 4 divisors (see below), whose sum is σ = 9991668672. Its totient is φ = 9978723012.

The previous prime is 9985195823. The next prime is 9985195853. The reversal of 9985195841 is 1485915899.

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: 1485915899 = 13 ⋅114301223.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9985195841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9985195861) 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, 3234101 + ... + 3237186.

It is an arithmetic number, because the mean of its divisors is an integer number (2497917168).

Almost surely, 2^9985195841 is an apocalyptic number.

It is an amenable number.

9985195841 is a deficient number, since it is larger than the sum of its proper divisors (6472831).

9985195841 is a wasteful number, since it uses less digits than its factorization.

9985195841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6472830.

The product of its digits is 4665600, while the sum is 59.

The square root of 9985195841 is about 99925.9517893125. The cubic root of 9985195841 is about 2153.3710118402.

The spelling of 9985195841 in words is "nine billion, nine hundred eighty-five million, one hundred ninety-five thousand, eight hundred forty-one".