85865304567867 has 16 divisors (see below), whose sum is σ = 124895152506240. Its totient is φ = 52039510174400.

The previous prime is 85865304567851. The next prime is 85865304567877. The reversal of 85865304567867 is 76876540356858.

It is a cyclic number.

It is not a de Polignac number, because 85865304567867 - 2⁴ = 85865304567851 is a prime.

It is a super-2 number, since 2×85865304567867² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85865304567792 and 85865304567801.

It is not an unprimeable number, because it can be changed into a prime (85865304567817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36644992 + ... + 38917682.

It is an arithmetic number, because the mean of its divisors is an integer number (7805947031640).

Almost surely, 2^{85865304567867} is an apocalyptic number.

85865304567867 is a deficient number, since it is larger than the sum of its proper divisors (39029847938373).

85865304567867 is a wasteful number, since it uses less digits than its factorization.

85865304567867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3417594.

The product of its (nonzero) digits is 8128512000, while the sum is 78.

The spelling of 85865304567867 in words is "eighty-five trillion, eight hundred sixty-five billion, three hundred four million, five hundred sixty-seven thousand, eight hundred sixty-seven".