9811431441 has 48 divisors (see below), whose sum is σ = 16321443840. Its totient is φ = 5563491840.

The previous prime is 9811431437. The next prime is 9811431473. The reversal of 9811431441 is 1441341189.

It is not a de Polignac number, because 9811431441 - 2² = 9811431437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9811431396 and 9811431405.

It is not an unprimeable number, because it can be changed into a prime (9811430441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6846061 + ... + 6847493.

It is an arithmetic number, because the mean of its divisors is an integer number (340030080).

Almost surely, 2^9811431441 is an apocalyptic number.

It is an amenable number.

9811431441 is a deficient number, since it is larger than the sum of its proper divisors (6510012399).

9811431441 is a wasteful number, since it uses less digits than its factorization.

9811431441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206 (or 2203 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 9811431441 is about 99052.6700346841. The cubic root of 9811431441 is about 2140.8067125538.

The spelling of 9811431441 in words is "nine billion, eight hundred eleven million, four hundred thirty-one thousand, four hundred forty-one".