9717552381 has 8 divisors (see below), whose sum is σ = 12993442560. Its totient is φ = 6460015232.

The previous prime is 9717552367. The next prime is 9717552409. The reversal of 9717552381 is 1832557179.

9717552381 is digitally balanced in base 2 and base 3, because in such bases 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 9717552381 - 2⁵ = 9717552349 is a prime.

It is a super-2 number, since 2×9717552381² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9717552381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9717552281) 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, 4587021 + ... + 4589138.

It is an arithmetic number, because the mean of its divisors is an integer number (1624180320).

Almost surely, 2^9717552381 is an apocalyptic number.

It is an amenable number.

9717552381 is a deficient number, since it is larger than the sum of its proper divisors (3275890179).

9717552381 is a wasteful number, since it uses less digits than its factorization.

9717552381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9176515.

The product of its digits is 529200, while the sum is 48.

The square root of 9717552381 is about 98577.6464569935. The cubic root of 9717552381 is about 2133.9568335070.

The spelling of 9717552381 in words is "nine billion, seven hundred seventeen million, five hundred fifty-two thousand, three hundred eighty-one".