986981232172 has 12 divisors (see below), whose sum is σ = 1860080014576. Its totient is φ = 455529799440.

The previous prime is 986981232157. The next prime is 986981232191. The reversal of 986981232172 is 271232189689.

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, 9490204104 + ... + 9490204207.

Almost surely, 2^986981232172 is an apocalyptic number.

It is an amenable number.

986981232172 is a deficient number, since it is larger than the sum of its proper divisors (873098782404).

986981232172 is a wasteful number, since it uses less digits than its factorization.

986981232172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18980408328 (or 18980408326 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 58.

The spelling of 986981232172 in words is "nine hundred eighty-six billion, nine hundred eighty-one million, two hundred thirty-two thousand, one hundred seventy-two".