9471709981 has 8 divisors (see below), whose sum is σ = 9807782400. Its totient is φ = 9136268400.

The previous prime is 9471709939. The next prime is 9471710009. The reversal of 9471709981 is 1899071749.

9471709981 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 a cyclic number.

It is not a de Polignac number, because 9471709981 - 2⁷ = 9471709853 is a prime.

It is a super-2 number, since 2×9471709981² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9471709781) 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, 127045 + ... + 187306.

It is an arithmetic number, because the mean of its divisors is an integer number (1225972800).

Almost surely, 2^9471709981 is an apocalyptic number.

It is an amenable number.

9471709981 is a deficient number, since it is larger than the sum of its proper divisors (336072419).

9471709981 is a wasteful number, since it uses less digits than its factorization.

9471709981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315419.

The product of its (nonzero) digits is 1143072, while the sum is 55.

The square root of 9471709981 is about 97322.7105099319. The cubic root of 9471709981 is about 2115.8073943117.

The spelling of 9471709981 in words is "nine billion, four hundred seventy-one million, seven hundred nine thousand, nine hundred eighty-one".