85805637067 has 2 divisors, whose sum is σ = 85805637068. Its totient is φ = 85805637066.

The previous prime is 85805637061. The next prime is 85805637139. The reversal of 85805637067 is 76073650858.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85805637067 - 2¹⁹ = 85805112779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85805636999 and 85805637017.

It is not a weakly prime, because it can be changed into another prime (85805637061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42902818533 + 42902818534.

It is an arithmetic number, because the mean of its divisors is an integer number (42902818534).

Almost surely, 2^85805637067 is an apocalyptic number.

85805637067 is a deficient number, since it is larger than the sum of its proper divisors (1).

85805637067 is an equidigital number, since it uses as much as digits as its factorization.

85805637067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8467200, while the sum is 55.

The spelling of 85805637067 in words is "eighty-five billion, eight hundred five million, six hundred thirty-seven thousand, sixty-seven".