9104643681 has 32 divisors (see below), whose sum is σ = 14179983360. Its totient is φ = 5087987136.

The previous prime is 9104643643. The next prime is 9104643689. The reversal of 9104643681 is 1863464019.

It is not a de Polignac number, because 9104643681 - 2²² = 9100449377 is a prime.

It is a super-2 number, since 2×9104643681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9104643689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1644540 + ... + 1650066.

It is an arithmetic number, because the mean of its divisors is an integer number (443124480).

Almost surely, 2^9104643681 is an apocalyptic number.

It is an amenable number.

9104643681 is a deficient number, since it is larger than the sum of its proper divisors (5075339679).

9104643681 is a wasteful number, since it uses less digits than its factorization.

9104643681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7253.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 9104643681 is about 95418.2565393017. The cubic root of 9104643681 is about 2088.1145424146.

The spelling of 9104643681 in words is "nine billion, one hundred four million, six hundred forty-three thousand, six hundred eighty-one".