9995843081 has 32 divisors (see below), whose sum is σ = 12102402048. Its totient is φ = 8074624320.

The previous prime is 9995843063. The next prime is 9995843101. The reversal of 9995843081 is 1803485999.

It is a de Polignac number, because none of the positive numbers 2^k-9995843081 is a prime.

It is a super-2 number, since 2×9995843081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9995843041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3572375 + ... + 3575171.

It is an arithmetic number, because the mean of its divisors is an integer number (378200064).

Almost surely, 2^9995843081 is an apocalyptic number.

It is an amenable number.

9995843081 is a deficient number, since it is larger than the sum of its proper divisors (2106558967).

9995843081 is a wasteful number, since it uses less digits than its factorization.

9995843081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261.

The product of its (nonzero) digits is 2799360, while the sum is 56.

The square root of 9995843081 is about 99979.2132445540. The cubic root of 9995843081 is about 2154.1361216407.

The spelling of 9995843081 in words is "nine billion, nine hundred ninety-five million, eight hundred forty-three thousand, eighty-one".