984699542172 has 12 divisors (see below), whose sum is σ = 2297632265096. Its totient is φ = 328233180720.

The previous prime is 984699542153. The next prime is 984699542213. The reversal of 984699542172 is 271245996489.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 41029147579 + ... + 41029147602.

Almost surely, 2^984699542172 is an apocalyptic number.

It is an amenable number.

984699542172 is an abundant number, since it is smaller than the sum of its proper divisors (1312932722924).

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

984699542172 is a wasteful number, since it uses less digits than its factorization.

984699542172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82058295188 (or 82058295186 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 66.

The spelling of 984699542172 in words is "nine hundred eighty-four billion, six hundred ninety-nine million, five hundred forty-two thousand, one hundred seventy-two".