85011749827 has 2 divisors, whose sum is σ = 85011749828. Its totient is φ = 85011749826.

The previous prime is 85011749789. The next prime is 85011749843. The reversal of 85011749827 is 72894711058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85011749827 - 2¹⁵ = 85011717059 is a prime.

It is not a weakly prime, because it can be changed into another prime (85011749327) 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, 42505874913 + 42505874914.

It is an arithmetic number, because the mean of its divisors is an integer number (42505874914).

Almost surely, 2^85011749827 is an apocalyptic number.

85011749827 is a deficient number, since it is larger than the sum of its proper divisors (1).

85011749827 is an equidigital number, since it uses as much as digits as its factorization.

85011749827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 52.

The spelling of 85011749827 in words is "eighty-five billion, eleven million, seven hundred forty-nine thousand, eight hundred twenty-seven".