9820085856854 has 96 divisors (see below), whose sum is σ = 18482060741760. Its totient is φ = 3878784258048.

The previous prime is 9820085856811. The next prime is 9820085856863. The reversal of 9820085856854 is 4586585800289.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3787150982 + ... + 3787153574.

It is an arithmetic number, because the mean of its divisors is an integer number (192521466060).

Almost surely, 2^{9820085856854} is an apocalyptic number.

9820085856854 is a deficient number, since it is larger than the sum of its proper divisors (8661974884906).

9820085856854 is a wasteful number, since it uses less digits than its factorization.

9820085856854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6134 (or 6127 counting only the distinct ones).

The product of its (nonzero) digits is 221184000, while the sum is 68.

The spelling of 9820085856854 in words is "nine trillion, eight hundred twenty billion, eighty-five million, eight hundred fifty-six thousand, eight hundred fifty-four".