85417047844 has 12 divisors (see below), whose sum is σ = 149534828800. Its totient is φ = 42692811048.

The previous prime is 85417047829. The next prime is 85417047851. The reversal of 85417047844 is 44874071458.

It is a junction number, because it is equal to n+sod(n) for n = 85417047791 and 85417047800.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3915984 + ... + 3937735.

Almost surely, 2^85417047844 is an apocalyptic number.

It is an amenable number.

85417047844 is a deficient number, since it is larger than the sum of its proper divisors (64117780956).

85417047844 is a wasteful number, since it uses less digits than its factorization.

85417047844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7856442 (or 7856440 counting only the distinct ones).

The product of its (nonzero) digits is 4014080, while the sum is 52.

The spelling of 85417047844 in words is "eighty-five billion, four hundred seventeen million, forty-seven thousand, eight hundred forty-four".