202028573009 has 2 divisors, whose sum is σ = 202028573010. Its totient is φ = 202028573008.

The previous prime is 202028572981. The next prime is 202028573039. The reversal of 202028573009 is 900375820202.

202028573009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119372323009 + 82656250000 = 345503^2 + 287500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202028573009 is a prime.

It is not a weakly prime, because it can be changed into another prime (202028573039) 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, 101014286504 + 101014286505.

It is an arithmetic number, because the mean of its divisors is an integer number (101014286505).

Almost surely, 2^202028573009 is an apocalyptic number.

It is an amenable number.

202028573009 is a deficient number, since it is larger than the sum of its proper divisors (1).

202028573009 is an equidigital number, since it uses as much as digits as its factorization.

202028573009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 202028573009 in words is "two hundred two billion, twenty-eight million, five hundred seventy-three thousand, nine".