9811334040631 has 4 divisors (see below), whose sum is σ = 10237913781552. Its totient is φ = 9384754299712.

The previous prime is 9811334040617. The next prime is 9811334040661. The reversal of 9811334040631 is 1360404331189.

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

It is a cyclic number.

It is not a de Polignac number, because 9811334040631 - 2⁹ = 9811334040119 is a prime.

It is a super-3 number, since 3×9811334040631³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9811334040611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213289870426 + ... + 213289870471.

It is an arithmetic number, because the mean of its divisors is an integer number (2559478445388).

Almost surely, 2^{9811334040631} is an apocalyptic number.

9811334040631 is a deficient number, since it is larger than the sum of its proper divisors (426579740921).

9811334040631 is a wasteful number, since it uses less digits than its factorization.

9811334040631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426579740920.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 9811334040631 in words is "nine trillion, eight hundred eleven billion, three hundred thirty-four million, forty thousand, six hundred thirty-one".