8704899899172 has 72 divisors (see below), whose sum is σ = 22734987387840. Its totient is φ = 2806788479040.

The previous prime is 8704899899161. The next prime is 8704899899173. The reversal of 8704899899172 is 2719989984078.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8704899899091 and 8704899899100.

It is not an unprimeable number, because it can be changed into a prime (8704899899173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31993522 + ... + 32264457.

It is an arithmetic number, because the mean of its divisors is an integer number (315763713720).

Almost surely, 2^{8704899899172} is an apocalyptic number.

It is an amenable number.

8704899899172 is an abundant number, since it is smaller than the sum of its proper divisors (14030087488668).

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

8704899899172 is a wasteful number, since it uses less digits than its factorization.

8704899899172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64258113 (or 64258108 counting only the distinct ones).

The product of its (nonzero) digits is 1316818944, while the sum is 81.

The spelling of 8704899899172 in words is "eight trillion, seven hundred four billion, eight hundred ninety-nine million, eight hundred ninety-nine thousand, one hundred seventy-two".