9894551012 has 24 divisors (see below), whose sum is σ = 17425884672. Its totient is φ = 4915786400.

The previous prime is 9894551011. The next prime is 9894551027. The reversal of 9894551012 is 2101554989.

It is not an unprimeable number, because it can be changed into a prime (9894551011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712043 + ... + 725805.

It is an arithmetic number, because the mean of its divisors is an integer number (726078528).

Almost surely, 2^9894551012 is an apocalyptic number.

It is an amenable number.

9894551012 is a deficient number, since it is larger than the sum of its proper divisors (7531333660).

9894551012 is a wasteful number, since it uses less digits than its factorization.

9894551012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14899 (or 14897 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 44.

The square root of 9894551012 is about 99471.3577468409. The cubic root of 9894551012 is about 2146.8351497178.

The spelling of 9894551012 in words is "nine billion, eight hundred ninety-four million, five hundred fifty-one thousand, twelve".