85704620033 has 2 divisors, whose sum is σ = 85704620034. Its totient is φ = 85704620032.

The previous prime is 85704620017. The next prime is 85704620039. The reversal of 85704620033 is 33002640758.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77522151184 + 8182468849 = 278428^2 + 90457^2 .

It is a cyclic number.

It is not a de Polignac number, because 85704620033 - 2⁴ = 85704620017 is a prime.

It is not a weakly prime, because it can be changed into another prime (85704620039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42852310016 + 42852310017.

It is an arithmetic number, because the mean of its divisors is an integer number (42852310017).

Almost surely, 2^85704620033 is an apocalyptic number.

It is an amenable number.

85704620033 is a deficient number, since it is larger than the sum of its proper divisors (1).

85704620033 is an equidigital number, since it uses as much as digits as its factorization.

85704620033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 85704620033 in words is "eighty-five billion, seven hundred four million, six hundred twenty thousand, thirty-three".