85345638811 has 2 divisors, whose sum is σ = 85345638812. Its totient is φ = 85345638810.

The previous prime is 85345638793. The next prime is 85345638853. The reversal of 85345638811 is 11883654358.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85345638811 - 2¹⁹ = 85345114523 is a prime.

It is not a weakly prime, because it can be changed into another prime (85345638881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42672819405 + 42672819406.

It is an arithmetic number, because the mean of its divisors is an integer number (42672819406).

Almost surely, 2^85345638811 is an apocalyptic number.

85345638811 is a deficient number, since it is larger than the sum of its proper divisors (1).

85345638811 is an equidigital number, since it uses as much as digits as its factorization.

85345638811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2764800, while the sum is 52.

The spelling of 85345638811 in words is "eighty-five billion, three hundred forty-five million, six hundred thirty-eight thousand, eight hundred eleven".