9541342771728 has 20 divisors (see below), whose sum is σ = 24648468827088. Its totient is φ = 3180447590560.

The previous prime is 9541342771721. The next prime is 9541342771787. The reversal of 9541342771728 is 8271772431459.

It is a happy number.

It is a super-2 number, since 2×9541342771728² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9541342771721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99388987158 + ... + 99388987253.

Almost surely, 2^{9541342771728} is an apocalyptic number.

It is an amenable number.

9541342771728 is an abundant number, since it is smaller than the sum of its proper divisors (15107126055360).

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

9541342771728 is a wasteful number, since it uses less digits than its factorization.

9541342771728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198777974422 (or 198777974416 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 60.

The spelling of 9541342771728 in words is "nine trillion, five hundred forty-one billion, three hundred forty-two million, seven hundred seventy-one thousand, seven hundred twenty-eight".