9628123129 has 3 divisors (see below), whose sum is σ = 9628221253. Its totient is φ = 9628025006.

The previous prime is 9628123123. The next prime is 9628123139. The reversal of 9628123129 is 9213218269.

The square root of 9628123129 is 98123.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 9628123129 - 2³ = 9628123121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9628123121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 49062 + ... + 147184.

Almost surely, 2^9628123129 is an apocalyptic number.

9628123129 is the 98123-rd square number.

9628123129 is the 49062-nd centered octagonal number.

It is an amenable number.

9628123129 is a deficient number, since it is larger than the sum of its proper divisors (98124).

9628123129 is an frugal number, since it uses more digits than its factorization.

9628123129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196246 (or 98123 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The cubic root of 9628123129 is about 2127.3904820125.

The spelling of 9628123129 in words is "nine billion, six hundred twenty-eight million, one hundred twenty-three thousand, one hundred twenty-nine".