9645455546 has 32 divisors (see below), whose sum is σ = 15531056640. Its totient is φ = 4476416256.

The previous prime is 9645455509. The next prime is 9645455551. The reversal of 9645455546 is 6455545469.

It is a happy number.

It is a super-3 number, since 3×9645455546³ (a number of 31 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3321131 + ... + 3324033.

It is an arithmetic number, because the mean of its divisors is an integer number (485345520).

Almost surely, 2^9645455546 is an apocalyptic number.

9645455546 is a deficient number, since it is larger than the sum of its proper divisors (5885601094).

9645455546 is a wasteful number, since it uses less digits than its factorization.

9645455546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4238.

The product of its digits is 12960000, while the sum is 53.

The square root of 9645455546 is about 98211.2801362450. The cubic root of 9645455546 is about 2128.6662832800. Note that the first 3 decimals are identical.

The spelling of 9645455546 in words is "nine billion, six hundred forty-five million, four hundred fifty-five thousand, five hundred forty-six".