9639268452 has 72 divisors (see below), whose sum is σ = 26643157632. Its totient is φ = 2914161600.

The previous prime is 9639268451. The next prime is 9639268459. The reversal of 9639268452 is 2548629369.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9639268451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142438 + ... + 198914.

It is an arithmetic number, because the mean of its divisors is an integer number (370043856).

Almost surely, 2^9639268452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9639268452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13321578816).

9639268452 is an abundant number, since it is smaller than the sum of its proper divisors (17003889180).

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

9639268452 is a wasteful number, since it uses less digits than its factorization.

9639268452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56929 (or 56924 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The square root of 9639268452 is about 98179.7761863409. The cubic root of 9639268452 is about 2128.2110403814.

The spelling of 9639268452 in words is "nine billion, six hundred thirty-nine million, two hundred sixty-eight thousand, four hundred fifty-two".