84611717850 has 48 divisors (see below), whose sum is σ = 228913161120. Its totient is φ = 20511931200.

The previous prime is 84611717849. The next prime is 84611717863. The reversal of 84611717850 is 5871711648.

It is a self number, because there is not a number n which added to its sum of digits gives 84611717850.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25638265 + ... + 25641564.

It is an arithmetic number, because the mean of its divisors is an integer number (4769024190).

Almost surely, 2^84611717850 is an apocalyptic number.

84611717850 is an abundant number, since it is smaller than the sum of its proper divisors (144301443270).

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

84611717850 is a wasteful number, since it uses less digits than its factorization.

84611717850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51279855 (or 51279850 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 48.

The spelling of 84611717850 in words is "eighty-four billion, six hundred eleven million, seven hundred seventeen thousand, eight hundred fifty".