9638980123 has 4 divisors (see below), whose sum is σ = 9639320328. Its totient is φ = 9638639920.

The previous prime is 9638980121. The next prime is 9638980163. The reversal of 9638980123 is 3210898369.

9638980123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9638980123 - 2¹ = 9638980121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9638980121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123313 + ... + 185698.

It is an arithmetic number, because the mean of its divisors is an integer number (2409830082).

Almost surely, 2^9638980123 is an apocalyptic number.

9638980123 is a deficient number, since it is larger than the sum of its proper divisors (340205).

9638980123 is a wasteful number, since it uses less digits than its factorization.

9638980123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340204.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 9638980123 is about 98178.3078026913. The cubic root of 9638980123 is about 2128.1898205457.

The spelling of 9638980123 in words is "nine billion, six hundred thirty-eight million, nine hundred eighty thousand, one hundred twenty-three".