285703011494189 has 2 divisors, whose sum is σ = 285703011494190. Its totient is φ = 285703011494188.

The previous prime is 285703011494179. The next prime is 285703011494227. The reversal of 285703011494189 is 981494110307582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202058634261289 + 83644377232900 = 14214733^2 + 9145730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285703011494189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285703011494119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142851505747094 + 142851505747095.

It is an arithmetic number, because the mean of its divisors is an integer number (142851505747095).

Almost surely, 2^{285703011494189} is an apocalyptic number.

It is an amenable number.

285703011494189 is a deficient number, since it is larger than the sum of its proper divisors (1).

285703011494189 is an equidigital number, since it uses as much as digits as its factorization.

285703011494189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17418240, while the sum is 62.

The spelling of 285703011494189 in words is "two hundred eighty-five trillion, seven hundred three billion, eleven million, four hundred ninety-four thousand, one hundred eighty-nine".