989975150212 has 6 divisors (see below), whose sum is σ = 1732456512878. Its totient is φ = 494987575104.

The previous prime is 989975150209. The next prime is 989975150257. The reversal of 989975150212 is 212051579989.

It can be written as a sum of positive squares in only one way, i.e., 981557821696 + 8417328516 = 990736^2 + 91746^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123746893773 + ... + 123746893780.

Almost surely, 2^989975150212 is an apocalyptic number.

It is an amenable number.

989975150212 is a deficient number, since it is larger than the sum of its proper divisors (742481362666).

989975150212 is a wasteful number, since it uses less digits than its factorization.

989975150212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247493787557 (or 247493787555 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 58.

The spelling of 989975150212 in words is "nine hundred eighty-nine billion, nine hundred seventy-five million, one hundred fifty thousand, two hundred twelve".