17121247012040 has 32 divisors (see below), whose sum is σ = 39342439946880. Its totient is φ = 6702786063552.

The previous prime is 17121247011961. The next prime is 17121247012061. The reversal of 17121247012040 is 4021074212171.

It is a junction number, because it is equal to n+sod(n) for n = 17121247011988 and 17121247012006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4553521262 + ... + 4553525021.

It is an arithmetic number, because the mean of its divisors is an integer number (1229451248340).

Almost surely, 2^{17121247012040} is an apocalyptic number.

17121247012040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17121247012040 is an abundant number, since it is smaller than the sum of its proper divisors (22221192934840).

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

17121247012040 is a wasteful number, since it uses less digits than its factorization.

17121247012040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9107046341 (or 9107046337 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The spelling of 17121247012040 in words is "seventeen trillion, one hundred twenty-one billion, two hundred forty-seven million, twelve thousand, forty".