9813941511 has 32 divisors (see below), whose sum is σ = 14370048000. Its totient is φ = 5908272480.

The previous prime is 9813941491. The next prime is 9813941537. The reversal of 9813941511 is 1151493189.

It is a happy number.

9813941511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9813941511 - 2⁵ = 9813941479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9813941411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7794400 + ... + 7795658.

It is an arithmetic number, because the mean of its divisors is an integer number (449064000).

Almost surely, 2^9813941511 is an apocalyptic number.

9813941511 is a deficient number, since it is larger than the sum of its proper divisors (4556106489).

9813941511 is a wasteful number, since it uses less digits than its factorization.

9813941511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659.

The product of its digits is 38880, while the sum is 42.

The square root of 9813941511 is about 99065.3396047275. The cubic root of 9813941511 is about 2140.9892586841.

The spelling of 9813941511 in words is "nine billion, eight hundred thirteen million, nine hundred forty-one thousand, five hundred eleven".