870617752628650 has 48 divisors (see below), whose sum is σ = 1743920439948288. Its totient is φ = 321457736088000.

The previous prime is 870617752628627. The next prime is 870617752628731. The reversal of 870617752628650 is 56826257716078.

It is a super-2 number, since 2×870617752628650² (a number of 31 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 870617752628650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196206055 + ... + 200594245.

It is an arithmetic number, because the mean of its divisors is an integer number (36331675832256).

Almost surely, 2^{870617752628650} is an apocalyptic number.

870617752628650 is an abundant number, since it is smaller than the sum of its proper divisors (873302687319638).

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

870617752628650 is a wasteful number, since it uses less digits than its factorization.

870617752628650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4693447 (or 4693442 counting only the distinct ones).

The product of its (nonzero) digits is 474163200, while the sum is 70.

The spelling of 870617752628650 in words is "eight hundred seventy trillion, six hundred seventeen billion, seven hundred fifty-two million, six hundred twenty-eight thousand, six hundred fifty".