9068081621 has 2 divisors, whose sum is σ = 9068081622. Its totient is φ = 9068081620.

The previous prime is 9068081609. The next prime is 9068081657. The reversal of 9068081621 is 1261808609.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4918918225 + 4149163396 = 70135^2 + 64414^2 .

It is a cyclic number.

It is not a de Polignac number, because 9068081621 - 2¹⁰ = 9068080597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9068081921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4534040810 + 4534040811.

It is an arithmetic number, because the mean of its divisors is an integer number (4534040811).

Almost surely, 2^9068081621 is an apocalyptic number.

It is an amenable number.

9068081621 is a deficient number, since it is larger than the sum of its proper divisors (1).

9068081621 is an equidigital number, since it uses as much as digits as its factorization.

9068081621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 9068081621 is about 95226.4754204418. The cubic root of 9068081621 is about 2085.3156705462.

The spelling of 9068081621 in words is "nine billion, sixty-eight million, eighty-one thousand, six hundred twenty-one".