9645571228 has 24 divisors (see below), whose sum is σ = 16948540224. Its totient is φ = 4803172800.

The previous prime is 9645571223. The next prime is 9645571253. The reversal of 9645571228 is 8221755469.

It is a super-3 number, since 3×9645571228³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9645571223) 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, 1022413 + ... + 1031803.

It is an arithmetic number, because the mean of its divisors is an integer number (706189176).

Almost surely, 2^9645571228 is an apocalyptic number.

It is an amenable number.

9645571228 is a deficient number, since it is larger than the sum of its proper divisors (7302968996).

9645571228 is a wasteful number, since it uses less digits than its factorization.

9645571228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10413 (or 10411 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 49.

The square root of 9645571228 is about 98211.8690790477. The cubic root of 9645571228 is about 2128.6747932422.

The spelling of 9645571228 in words is "nine billion, six hundred forty-five million, five hundred seventy-one thousand, two hundred twenty-eight".