9677531681 has 8 divisors (see below), whose sum is σ = 10446511680. Its totient is φ = 8937569872.

The previous prime is 9677531621. The next prime is 9677531683. The reversal of 9677531681 is 1861357769.

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 9677531681 - 2²⁶ = 9610422817 is a prime.

It is a super-2 number, since 2×9677531681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9677531683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7253855 + ... + 7255188.

It is an arithmetic number, because the mean of its divisors is an integer number (1305813960).

Almost surely, 2^9677531681 is an apocalyptic number.

It is an amenable number.

9677531681 is a deficient number, since it is larger than the sum of its proper divisors (768979999).

9677531681 is a wasteful number, since it uses less digits than its factorization.

9677531681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14509095.

The product of its digits is 1905120, while the sum is 53.

The square root of 9677531681 is about 98374.4462805255. The cubic root of 9677531681 is about 2131.0233116983.

The spelling of 9677531681 in words is "nine billion, six hundred seventy-seven million, five hundred thirty-one thousand, six hundred eighty-one".