85546985903971 has 16 divisors (see below), whose sum is σ = 86196181363200. Its totient is φ = 84900348352800.

The previous prime is 85546985903969. The next prime is 85546985904019. The reversal of 85546985903971 is 17930958964558.

It is a cyclic number.

It is not a de Polignac number, because 85546985903971 - 2¹ = 85546985903969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85546985903891 and 85546985903900.

It is not an unprimeable number, because it can be changed into a prime (85546985903921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452681220 + ... + 452870158.

It is an arithmetic number, because the mean of its divisors is an integer number (5387261335200).

Almost surely, 2^{85546985903971} is an apocalyptic number.

85546985903971 is a deficient number, since it is larger than the sum of its proper divisors (649195459229).

85546985903971 is a wasteful number, since it uses less digits than its factorization.

85546985903971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195690.

The product of its (nonzero) digits is 2939328000, while the sum is 79.

The spelling of 85546985903971 in words is "eighty-five trillion, five hundred forty-six billion, nine hundred eighty-five million, nine hundred three thousand, nine hundred seventy-one".