8961968789 has 8 divisors (see below), whose sum is σ = 9154021248. Its totient is φ = 8769973600.

The previous prime is 8961968783. The next prime is 8961968809. The reversal of 8961968789 is 9878691698.

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 8961968789 - 2²⁸ = 8693533333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8961968783) 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, 489254 + ... + 507240.

It is an arithmetic number, because the mean of its divisors is an integer number (1144252656).

Almost surely, 2^8961968789 is an apocalyptic number.

It is an amenable number.

8961968789 is a deficient number, since it is larger than the sum of its proper divisors (192052459).

8961968789 is a wasteful number, since it uses less digits than its factorization.

8961968789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28635.

The product of its digits is 94058496, while the sum is 71.

The square root of 8961968789 is about 94667.6755233802. The cubic root of 8961968789 is about 2077.1497564636.

The spelling of 8961968789 in words is "eight billion, nine hundred sixty-one million, nine hundred sixty-eight thousand, seven hundred eighty-nine".