85854517711 has 2 divisors, whose sum is σ = 85854517712. Its totient is φ = 85854517710.

The previous prime is 85854517687. The next prime is 85854517717. The reversal of 85854517711 is 11771545858.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85854517711 - 2¹³ = 85854509519 is a prime.

It is a super-2 number, since 2×85854517711² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85854517717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42927258855 + 42927258856.

It is an arithmetic number, because the mean of its divisors is an integer number (42927258856).

Almost surely, 2^85854517711 is an apocalyptic number.

85854517711 is a deficient number, since it is larger than the sum of its proper divisors (1).

85854517711 is an equidigital number, since it uses as much as digits as its factorization.

85854517711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1568000, while the sum is 52.

The spelling of 85854517711 in words is "eighty-five billion, eight hundred fifty-four million, five hundred seventeen thousand, seven hundred eleven".