9629628779 has 8 divisors (see below), whose sum is σ = 9763773120. Its totient is φ = 9495544896.

The previous prime is 9629628737. The next prime is 9629628781. The reversal of 9629628779 is 9778269269.

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 9629628779 - 2²⁸ = 9361193323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9629628719) 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, 375134 + ... + 399980.

It is an arithmetic number, because the mean of its divisors is an integer number (1220471640).

Almost surely, 2^9629628779 is an apocalyptic number.

9629628779 is a deficient number, since it is larger than the sum of its proper divisors (134144341).

9629628779 is a wasteful number, since it uses less digits than its factorization.

9629628779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30229.

The product of its digits is 41150592, while the sum is 65.

The square root of 9629628779 is about 98130.6719583638. The cubic root of 9629628779 is about 2127.5013703093.

The spelling of 9629628779 in words is "nine billion, six hundred twenty-nine million, six hundred twenty-eight thousand, seven hundred seventy-nine".