9872552789 has 4 divisors (see below), whose sum is σ = 10770057600. Its totient is φ = 8975047980.

The previous prime is 9872552771. The next prime is 9872552813.

It is a happy number.

9872552789 is nontrivially palindromic in base 10.

9872552789 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9872552789 - 2¹⁶ = 9872487253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9872552089) 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, 448752389 + ... + 448752410.

It is an arithmetic number, because the mean of its divisors is an integer number (2692514400).

Almost surely, 2^9872552789 is an apocalyptic number.

It is an amenable number.

9872552789 is a deficient number, since it is larger than the sum of its proper divisors (897504811).

9872552789 is a wasteful number, since it uses less digits than its factorization.

9872552789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897504810.

The product of its digits is 25401600, while the sum is 62.

The square root of 9872552789 is about 99360.7205539493. The cubic root of 9872552789 is about 2145.2429736916.

The spelling of 9872552789 in words is "nine billion, eight hundred seventy-two million, five hundred fifty-two thousand, seven hundred eighty-nine".