6981489172 has 12 divisors (see below), whose sum is σ = 13962978400. Its totient is φ = 2992066776.

The previous prime is 6981489169. The next prime is 6981489191. The reversal of 6981489172 is 2719841896.

It is a happy number.

6981489172 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124669422 + ... + 124669477.

Almost surely, 2^6981489172 is an apocalyptic number.

It is an amenable number.

6981489172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6981489172 is a wasteful number, since it uses less digits than its factorization.

6981489172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249338910 (or 249338908 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 55.

The square root of 6981489172 is about 83555.3060672989. The cubic root of 6981489172 is about 1911.2435066407.

The spelling of 6981489172 in words is "six billion, nine hundred eighty-one million, four hundred eighty-nine thousand, one hundred seventy-two".