9855020713 has 2 divisors, whose sum is σ = 9855020714. Its totient is φ = 9855020712.

The previous prime is 9855020639. The next prime is 9855020723. The reversal of 9855020713 is 3170205589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5828864409 + 4026156304 = 76347^2 + 63452^2 .

It is a cyclic number.

It is not a de Polignac number, because 9855020713 - 2¹³ = 9855012521 is a prime.

It is not a weakly prime, because it can be changed into another prime (9855020723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4927510356 + 4927510357.

It is an arithmetic number, because the mean of its divisors is an integer number (4927510357).

Almost surely, 2^9855020713 is an apocalyptic number.

It is an amenable number.

9855020713 is a deficient number, since it is larger than the sum of its proper divisors (1).

9855020713 is an equidigital number, since it uses as much as digits as its factorization.

9855020713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 9855020713 is about 99272.4569707026. The cubic root of 9855020713 is about 2143.9723516921.

The spelling of 9855020713 in words is "nine billion, eight hundred fifty-five million, twenty thousand, seven hundred thirteen".