870617284486885 has 128 divisors (see below), whose sum is σ = 1315659032432640. Its totient is φ = 545664986726400.

The previous prime is 870617284486793. The next prime is 870617284486897. The reversal of 870617284486885 is 588684482716078.

It is not a de Polignac number, because 870617284486885 - 2¹¹ = 870617284484837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 870617284486799 and 870617284486808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 28737019 + ... + 50666071.

It is an arithmetic number, because the mean of its divisors is an integer number (10278586190880).

Almost surely, 2^{870617284486885} is an apocalyptic number.

870617284486885 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

870617284486885 is a deficient number, since it is larger than the sum of its proper divisors (445041747945755).

870617284486885 is a wasteful number, since it uses less digits than its factorization.

870617284486885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21929199.

The product of its (nonzero) digits is 9248440320, while the sum is 82.

The spelling of 870617284486885 in words is "eight hundred seventy trillion, six hundred seventeen billion, two hundred eighty-four million, four hundred eighty-six thousand, eight hundred eighty-five".