17121375414644 has 12 divisors (see below), whose sum is σ = 29962462630464. Its totient is φ = 8560671805944.

The previous prime is 17121375414581. The next prime is 17121375414727. The reversal of 17121375414644 is 44641457312171.

It is a junction number, because it is equal to n+sod(n) for n = 17121375414592 and 17121375414601.

It is a congruent number.

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, 1361804 + ... + 6008099.

It is an arithmetic number, because the mean of its divisors is an integer number (2496871885872).

Almost surely, 2^{17121375414644} is an apocalyptic number.

It is an amenable number.

17121375414644 is a deficient number, since it is larger than the sum of its proper divisors (12841087215820).

17121375414644 is a wasteful number, since it uses less digits than its factorization.

17121375414644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7950694 (or 7950692 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 50.

The spelling of 17121375414644 in words is "seventeen trillion, one hundred twenty-one billion, three hundred seventy-five million, four hundred fourteen thousand, six hundred forty-four".