94821701209 has 2 divisors, whose sum is σ = 94821701210. Its totient is φ = 94821701208.

The previous prime is 94821701201. The next prime is 94821701213. The reversal of 94821701209 is 90210712849.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49961190400 + 44860510809 = 223520^2 + 211803^2 .

It is a cyclic number.

It is not a de Polignac number, because 94821701209 - 2³ = 94821701201 is a prime.

It is not a weakly prime, because it can be changed into another prime (94821701201) 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, 47410850604 + 47410850605.

It is an arithmetic number, because the mean of its divisors is an integer number (47410850605).

Almost surely, 2^94821701209 is an apocalyptic number.

It is an amenable number.

94821701209 is a deficient number, since it is larger than the sum of its proper divisors (1).

94821701209 is an equidigital number, since it uses as much as digits as its factorization.

94821701209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 94821701209 in words is "ninety-four billion, eight hundred twenty-one million, seven hundred one thousand, two hundred nine".