85417044077 has 8 divisors (see below), whose sum is σ = 88367830200. Its totient is φ = 82466616064.

The previous prime is 85417044049. The next prime is 85417044103. The reversal of 85417044077 is 77044071458.

It can be written as a sum of positive squares in 4 ways, for example, as 15626500036 + 69790544041 = 125006^2 + 264179^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85417044077 - 2⁸ = 85417043821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85417044877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451193 + ... + 611889.

It is an arithmetic number, because the mean of its divisors is an integer number (11045978775).

Almost surely, 2^85417044077 is an apocalyptic number.

It is an amenable number.

85417044077 is a deficient number, since it is larger than the sum of its proper divisors (2950786123).

85417044077 is a wasteful number, since it uses less digits than its factorization.

85417044077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179055.

The product of its (nonzero) digits is 878080, while the sum is 47.

The spelling of 85417044077 in words is "eighty-five billion, four hundred seventeen million, forty-four thousand, seventy-seven".