1697008920172 has 12 divisors (see below), whose sum is σ = 2969913287880. Its totient is φ = 848462266496.

The previous prime is 1697008920169. The next prime is 1697008920179. The reversal of 1697008920172 is 2710298007961.

It is not an unprimeable number, because it can be changed into a prime (1697008920179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10457818 + ... + 10618849.

It is an arithmetic number, because the mean of its divisors is an integer number (247492773990).

Almost surely, 2^{1697008920172} is an apocalyptic number.

It is an amenable number.

1697008920172 is a deficient number, since it is larger than the sum of its proper divisors (1272904367708).

1697008920172 is a wasteful number, since it uses less digits than its factorization.

1697008920172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21096800 (or 21096798 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 52.

The spelling of 1697008920172 in words is "one trillion, six hundred ninety-seven billion, eight million, nine hundred twenty thousand, one hundred seventy-two".