989571035706228 has 36 divisors (see below), whose sum is σ = 2501547613481280. Its totient is φ = 329839613235216.

The previous prime is 989571035706217. The next prime is 989571035706251. The reversal of 989571035706228 is 822607530175989.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 724252450 + ... + 725617497.

Almost surely, 2^{989571035706228} is an apocalyptic number.

It is an amenable number.

989571035706228 is an abundant number, since it is smaller than the sum of its proper divisors (1511976577775052).

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

989571035706228 is a wasteful number, since it uses less digits than its factorization.

989571035706228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449888916 (or 1449888911 counting only the distinct ones).

The product of its (nonzero) digits is 457228800, while the sum is 72.

The spelling of 989571035706228 in words is "nine hundred eighty-nine trillion, five hundred seventy-one billion, thirty-five million, seven hundred six thousand, two hundred twenty-eight".