9821341261 has 8 divisors (see below), whose sum is σ = 10079933760. Its totient is φ = 9566043168.

The previous prime is 9821341223. The next prime is 9821341267. The reversal of 9821341261 is 1621431289.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9821341261 - 2²¹ = 9819244109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9821341261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9821341267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817561 + ... + 829486.

It is an arithmetic number, because the mean of its divisors is an integer number (1259991720).

Almost surely, 2^9821341261 is an apocalyptic number.

It is an amenable number.

9821341261 is a deficient number, since it is larger than the sum of its proper divisors (258592499).

9821341261 is a wasteful number, since it uses less digits than its factorization.

9821341261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647203.

The product of its digits is 20736, while the sum is 37.

The square root of 9821341261 is about 99102.6803926110. The cubic root of 9821341261 is about 2141.5272282341.

The spelling of 9821341261 in words is "nine billion, eight hundred twenty-one million, three hundred forty-one thousand, two hundred sixty-one".