9976628712 has 64 divisors (see below), whose sum is σ = 25555046400. Its totient is φ = 3244207040.

The previous prime is 9976628689. The next prime is 9976628713. The reversal of 9976628712 is 2178266799.

It is not an unprimeable number, because it can be changed into a prime (9976628713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336589 + ... + 365027.

It is an arithmetic number, because the mean of its divisors is an integer number (399297600).

Almost surely, 2^9976628712 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 9976628712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12777523200).

9976628712 is an abundant number, since it is smaller than the sum of its proper divisors (15578417688).

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

9976628712 is a wasteful number, since it uses less digits than its factorization.

9976628712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28806 (or 28802 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 57.

The square root of 9976628712 is about 99883.0752029592. The cubic root of 9976628712 is about 2152.7549836675.

The spelling of 9976628712 in words is "nine billion, nine hundred seventy-six million, six hundred twenty-eight thousand, seven hundred twelve".