85021241827 has 2 divisors, whose sum is σ = 85021241828. Its totient is φ = 85021241826.

The previous prime is 85021241771. The next prime is 85021241831. The reversal of 85021241827 is 72814212058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85021241827 - 2⁷ = 85021241699 is a prime.

It is a super-2 number, since 2×85021241827² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85021241827.

It is not a weakly prime, because it can be changed into another prime (85021241887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42510620913 + 42510620914.

It is an arithmetic number, because the mean of its divisors is an integer number (42510620914).

Almost surely, 2^85021241827 is an apocalyptic number.

85021241827 is a deficient number, since it is larger than the sum of its proper divisors (1).

85021241827 is an equidigital number, since it uses as much as digits as its factorization.

85021241827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71680, while the sum is 40.

The spelling of 85021241827 in words is "eighty-five billion, twenty-one million, two hundred forty-one thousand, eight hundred twenty-seven".