85853328791 has 2 divisors, whose sum is σ = 85853328792. Its totient is φ = 85853328790.

The previous prime is 85853328697. The next prime is 85853328829. The reversal of 85853328791 is 19782335858.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85853328791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85853328791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85853328091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42926664395 + 42926664396.

It is an arithmetic number, because the mean of its divisors is an integer number (42926664396).

Almost surely, 2^85853328791 is an apocalyptic number.

85853328791 is a deficient number, since it is larger than the sum of its proper divisors (1).

85853328791 is an equidigital number, since it uses as much as digits as its factorization.

85853328791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14515200, while the sum is 59.

The spelling of 85853328791 in words is "eighty-five billion, eight hundred fifty-three million, three hundred twenty-eight thousand, seven hundred ninety-one".