17712997120 has 288 divisors, whose sum is σ = 53507341440. Its totient is φ = 5467668480.

The previous prime is 17712997111. The next prime is 17712997139. The reversal of 17712997120 is 2179921771.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4773826 + ... + 4777534.

It is an arithmetic number, because the mean of its divisors is an integer number (185789380).

Almost surely, 2^17712997120 is an apocalyptic number.

17712997120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17712997120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26753670720).

17712997120 is an abundant number, since it is smaller than the sum of its proper divisors (35794344320).

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

17712997120 is a wasteful number, since it uses less digits than its factorization.

17712997120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3791 (or 3777 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 46.

The spelling of 17712997120 in words is "seventeen billion, seven hundred twelve million, nine hundred ninety-seven thousand, one hundred twenty".