8857650121 has 2 divisors, whose sum is σ = 8857650122. Its totient is φ = 8857650120.

The previous prime is 8857650077. The next prime is 8857650161. The reversal of 8857650121 is 1210567588.

8857650121 is digitally balanced in base 2, 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., 7985924496 + 871725625 = 89364^2 + 29525^2 .

It is a cyclic number.

It is not a de Polignac number, because 8857650121 - 2⁹ = 8857649609 is a prime.

It is not a weakly prime, because it can be changed into another prime (8857650161) 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 as a sum of consecutive naturals, namely, 4428825060 + 4428825061.

It is an arithmetic number, because the mean of its divisors is an integer number (4428825061).

Almost surely, 2^8857650121 is an apocalyptic number.

It is an amenable number.

8857650121 is a deficient number, since it is larger than the sum of its proper divisors (1).

8857650121 is an equidigital number, since it uses as much as digits as its factorization.

8857650121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 43.

The square root of 8857650121 is about 94115.0897624818. The cubic root of 8857650121 is about 2069.0588361519.

The spelling of 8857650121 in words is "eight billion, eight hundred fifty-seven million, six hundred fifty thousand, one hundred twenty-one".