9960812989 has 8 divisors (see below), whose sum is σ = 10105084800. Its totient is φ = 9816752736.

The previous prime is 9960812933. The next prime is 9960812993. The reversal of 9960812989 is 9892180699.

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 9960812989 - 2⁷ = 9960812861 is a prime.

It is a super-2 number, since 2×9960812989² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9960852989) 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, 43212 + ... + 147610.

It is an arithmetic number, because the mean of its divisors is an integer number (1263135600).

Almost surely, 2^9960812989 is an apocalyptic number.

It is an amenable number.

9960812989 is a deficient number, since it is larger than the sum of its proper divisors (144271811).

9960812989 is a wasteful number, since it uses less digits than its factorization.

9960812989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105779.

The product of its (nonzero) digits is 5038848, while the sum is 61.

The square root of 9960812989 is about 99803.8726152447. The cubic root of 9960812989 is about 2151.6168108149.

The spelling of 9960812989 in words is "nine billion, nine hundred sixty million, eight hundred twelve thousand, nine hundred eighty-nine".