85461216459 has 16 divisors (see below), whose sum is σ = 123187342080. Its totient is φ = 52516706400.

The previous prime is 85461216389. The next prime is 85461216469. The reversal of 85461216459 is 95461216458.

It is not a de Polignac number, because 85461216459 - 2¹⁷ = 85461085387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85461216469) 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, 20258967 + ... + 20263184.

It is an arithmetic number, because the mean of its divisors is an integer number (7699208880).

Almost surely, 2^85461216459 is an apocalyptic number.

85461216459 is a deficient number, since it is larger than the sum of its proper divisors (37726125621).

85461216459 is a wasteful number, since it uses less digits than its factorization.

85461216459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40522210.

The product of its digits is 2073600, while the sum is 51.

Subtracting 85461216459 from its reverse (95461216458), we obtain a palindrome (9999999999).

The spelling of 85461216459 in words is "eighty-five billion, four hundred sixty-one million, two hundred sixteen thousand, four hundred fifty-nine".