841266261 has 12 divisors (see below), whose sum is σ = 1325631840. Its totient is φ = 509858280.

The previous prime is 841266241. The next prime is 841266277. The reversal of 841266261 is 162662148.

841266261 is a `hidden beast` number, since 8 + 4 + 1 + 26 + 626 + 1 = 666.

It is not a de Polignac number, because 841266261 - 2¹⁹ = 840741973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (841266221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4248721 + ... + 4248918.

It is an arithmetic number, because the mean of its divisors is an integer number (110469320).

Almost surely, 2^841266261 is an apocalyptic number.

It is an amenable number.

841266261 is a deficient number, since it is larger than the sum of its proper divisors (484365579).

841266261 is a wasteful number, since it uses less digits than its factorization.

841266261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8497656 (or 8497653 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 841266261 is about 29004.5903435991. The cubic root of 841266261 is about 944.0126716705.

The spelling of 841266261 in words is "eight hundred forty-one million, two hundred sixty-six thousand, two hundred sixty-one".