9766897812 has 96 divisors (see below), whose sum is σ = 29195308800. Its totient is φ = 2765822976.

The previous prime is 9766897781. The next prime is 9766897867. The reversal of 9766897812 is 2187986679.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 9766897812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28264 + ... + 142592.

It is an arithmetic number, because the mean of its divisors is an integer number (304117800).

Almost surely, 2^9766897812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9766897812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14597654400).

9766897812 is an abundant number, since it is smaller than the sum of its proper divisors (19428410988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9766897812 is a wasteful number, since it uses less digits than its factorization.

9766897812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114462 (or 114454 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 63.

The square root of 9766897812 is about 98827.6166463605. The cubic root of 9766897812 is about 2137.5627923690.

The spelling of 9766897812 in words is "nine billion, seven hundred sixty-six million, eight hundred ninety-seven thousand, eight hundred twelve".