85217061957364 has 24 divisors (see below), whose sum is σ = 149301412581888. Its totient is φ = 42559517713440.

The previous prime is 85217061957353. The next prime is 85217061957421. The reversal of 85217061957364 is 46375916071258.

It is a junction number, because it is equal to n+sod(n) for n = 85217061957296 and 85217061957305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169026922 + ... + 169530334.

It is an arithmetic number, because the mean of its divisors is an integer number (6220892190912).

It is a 1-persistent number, because it is pandigital, but 2⋅85217061957364 = 170434123914728 is not.

Almost surely, 2^{85217061957364} is an apocalyptic number.

It is an amenable number.

85217061957364 is a deficient number, since it is larger than the sum of its proper divisors (64084350624524).

85217061957364 is a wasteful number, since it uses less digits than its factorization.

85217061957364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552015 (or 552013 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 64.

The spelling of 85217061957364 in words is "eighty-five trillion, two hundred seventeen billion, sixty-one million, nine hundred fifty-seven thousand, three hundred sixty-four".