8969231351809 has 8 divisors (see below), whose sum is σ = 9212254718120. Its totient is φ = 8726240180736.

The previous prime is 8969231351779. The next prime is 8969231351813. The reversal of 8969231351809 is 9081531329698.

It can be written as a sum of positive squares in 4 ways, for example, as 5532360297409 + 3436871054400 = 2352097^2 + 1853880^2 .

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 8969231351809 - 2¹³ = 8969231343617 is a prime.

It is a super-2 number, since 2×8969231351809² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8969231351309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7483554 + ... + 8598955.

It is an arithmetic number, because the mean of its divisors is an integer number (1151531839765).

Almost surely, 2^{8969231351809} is an apocalyptic number.

It is an amenable number.

8969231351809 is a deficient number, since it is larger than the sum of its proper divisors (243023366311).

8969231351809 is a wasteful number, since it uses less digits than its factorization.

8969231351809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16097619.

The product of its (nonzero) digits is 25194240, while the sum is 64.

The spelling of 8969231351809 in words is "eight trillion, nine hundred sixty-nine billion, two hundred thirty-one million, three hundred fifty-one thousand, eight hundred nine".