9577681969 has 8 divisors (see below), whose sum is σ = 10149597000. Its totient is φ = 9006713856.

The previous prime is 9577681961. The next prime is 9577682021. The reversal of 9577681969 is 9691867759.

It can be written as a sum of positive squares in 4 ways, for example, as 607129600 + 8970552369 = 24640^2 + 94713^2 .

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 9577681969 - 2³ = 9577681961 is a prime.

It is a super-2 number, since 2×9577681969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9577681961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215844 + ... + 256405.

It is an arithmetic number, because the mean of its divisors is an integer number (1268699625).

Almost surely, 2^9577681969 is an apocalyptic number.

It is an amenable number.

9577681969 is a deficient number, since it is larger than the sum of its proper divisors (571915031).

9577681969 is a wasteful number, since it uses less digits than its factorization.

9577681969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473459.

The product of its digits is 51438240, while the sum is 67.

The square root of 9577681969 is about 97865.6322158090. The cubic root of 9577681969 is about 2123.6688849424.

The spelling of 9577681969 in words is "nine billion, five hundred seventy-seven million, six hundred eighty-one thousand, nine hundred sixty-nine".