8270205641 has 2 divisors, whose sum is σ = 8270205642. Its totient is φ = 8270205640.

The previous prime is 8270205631. The next prime is 8270205649. The reversal of 8270205641 is 1465020728.

8270205641 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5334841600 + 2935364041 = 73040^2 + 54179^2 .

It is a cyclic number.

It is not a de Polignac number, because 8270205641 - 2¹⁸ = 8269943497 is a prime.

It is not a weakly prime, because it can be changed into another prime (8270205649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4135102820 + 4135102821.

It is an arithmetic number, because the mean of its divisors is an integer number (4135102821).

Almost surely, 2^8270205641 is an apocalyptic number.

It is an amenable number.

8270205641 is a deficient number, since it is larger than the sum of its proper divisors (1).

8270205641 is an equidigital number, since it uses as much as digits as its factorization.

8270205641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 8270205641 is about 90940.6709948855. The cubic root of 8270205641 is about 2022.2682784451.

The spelling of 8270205641 in words is "eight billion, two hundred seventy million, two hundred five thousand, six hundred forty-one".