9629628780 has 24 divisors (see below), whose sum is σ = 26962960752. Its totient is φ = 2567900992.

The previous prime is 9629628737. The next prime is 9629628781. The reversal of 9629628780 is 878269269.

It is a self number, because there is not a number n which added to its sum of digits gives 9629628780.

It is not an unprimeable number, because it can be changed into a prime (9629628781) 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, 80246847 + ... + 80246966.

It is an arithmetic number, because the mean of its divisors is an integer number (1123456698).

Almost surely, 2^9629628780 is an apocalyptic number.

It is an amenable number.

9629628780 is an abundant number, since it is smaller than the sum of its proper divisors (17333331972).

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

9629628780 is a wasteful number, since it uses less digits than its factorization.

9629628780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160493825 (or 160493823 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 57.

The square root of 9629628780 is about 98130.6719634590. The cubic root of 9629628780 is about 2127.5013703829.

The spelling of 9629628780 in words is "nine billion, six hundred twenty-nine million, six hundred twenty-eight thousand, seven hundred eighty".