9728161041 has 32 divisors (see below), whose sum is σ = 13616064000. Its totient is φ = 6169782528.

The previous prime is 9728161033. The next prime is 9728161043. The reversal of 9728161041 is 1401618279.

It is not a de Polignac number, because 9728161041 - 2³ = 9728161033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9728161043) 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, 4211995 + ... + 4214303.

It is an arithmetic number, because the mean of its divisors is an integer number (425502000).

Almost surely, 2^9728161041 is an apocalyptic number.

It is an amenable number.

9728161041 is a deficient number, since it is larger than the sum of its proper divisors (3887902959).

9728161041 is a wasteful number, since it uses less digits than its factorization.

9728161041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 9728161041 is about 98631.4404284962. The cubic root of 9728161041 is about 2134.7330985746.

The spelling of 9728161041 in words is "nine billion, seven hundred twenty-eight million, one hundred sixty-one thousand, forty-one".