9866255741 has 4 divisors (see below), whose sum is σ = 9879393984. Its totient is φ = 9853117500.

The previous prime is 9866255719. The next prime is 9866255747. The reversal of 9866255741 is 1475526689.

9866255741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9866255741 is a prime.

It is a super-3 number, since 3×9866255741³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9866255747) 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, 6567995 + ... + 6569496.

It is an arithmetic number, because the mean of its divisors is an integer number (2469848496).

Almost surely, 2^9866255741 is an apocalyptic number.

It is an amenable number.

9866255741 is a deficient number, since it is larger than the sum of its proper divisors (13138243).

9866255741 is a wasteful number, since it uses less digits than its factorization.

9866255741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13138242.

The product of its digits is 3628800, while the sum is 53.

The square root of 9866255741 is about 99329.0276857677. The cubic root of 9866255741 is about 2144.7867738486.

The spelling of 9866255741 in words is "nine billion, eight hundred sixty-six million, two hundred fifty-five thousand, seven hundred forty-one".