9813541947 has 8 divisors (see below), whose sum is σ = 14274242880. Its totient is φ = 5947601160.

The previous prime is 9813541943. The next prime is 9813541949. The reversal of 9813541947 is 7491453189.

9813541947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9813541947 - 2² = 9813541943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9813541947.

It is not an unprimeable number, because it can be changed into a prime (9813541943) 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 7 ways as a sum of consecutive naturals, for example, 148689997 + ... + 148690062.

It is an arithmetic number, because the mean of its divisors is an integer number (1784280360).

Almost surely, 2^9813541947 is an apocalyptic number.

9813541947 is a deficient number, since it is larger than the sum of its proper divisors (4460700933).

9813541947 is a wasteful number, since it uses less digits than its factorization.

9813541947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297380073.

The product of its digits is 1088640, while the sum is 51.

The square root of 9813541947 is about 99063.3229151940. The cubic root of 9813541947 is about 2140.9602022702.

The spelling of 9813541947 in words is "nine billion, eight hundred thirteen million, five hundred forty-one thousand, nine hundred forty-seven".