85417066854 has 72 divisors (see below), whose sum is σ = 220536840888. Its totient is φ = 23809625280.

The previous prime is 85417066849. The next prime is 85417066901. The reversal of 85417066854 is 45866071458.

It is a self number, because there is not a number n which added to its sum of digits gives 85417066854.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1144872 + ... + 1217195.

It is an arithmetic number, because the mean of its divisors is an integer number (3063011679).

Almost surely, 2^85417066854 is an apocalyptic number.

85417066854 is an abundant number, since it is smaller than the sum of its proper divisors (135119774034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85417066854 is a wasteful number, since it uses less digits than its factorization.

85417066854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362130 (or 2362120 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 85417066854 in words is "eighty-five billion, four hundred seventeen million, sixty-six thousand, eight hundred fifty-four".