85408562311 has 2 divisors, whose sum is σ = 85408562312. Its totient is φ = 85408562310.

The previous prime is 85408562299. The next prime is 85408562321. The reversal of 85408562311 is 11326580458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85408562311 - 2⁵ = 85408562279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85408562321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42704281155 + 42704281156.

It is an arithmetic number, because the mean of its divisors is an integer number (42704281156).

Almost surely, 2^85408562311 is an apocalyptic number.

85408562311 is a deficient number, since it is larger than the sum of its proper divisors (1).

85408562311 is an equidigital number, since it uses as much as digits as its factorization.

85408562311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 85408562311 in words is "eighty-five billion, four hundred eight million, five hundred sixty-two thousand, three hundred eleven".