1717201406421 has 12 divisors (see below), whose sum is σ = 2480416428672. Its totient is φ = 1144794292776.

The previous prime is 1717201406413. The next prime is 1717201406441. The reversal of 1717201406421 is 1246041027171.

1717201406421 is a `hidden beast` number, since 1 + 7 + 1 + 7 + 2 + 0 + 1 + 4 + 0 + 642 + 1 = 666.

It is not a de Polignac number, because 1717201406421 - 2³ = 1717201406413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1717201406441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1473630 + ... + 2367696.

It is an arithmetic number, because the mean of its divisors is an integer number (206701369056).

Almost surely, 2^{1717201406421} is an apocalyptic number.

It is an amenable number.

1717201406421 is a deficient number, since it is larger than the sum of its proper divisors (763215022251).

1717201406421 is a wasteful number, since it uses less digits than its factorization.

1717201406421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107480 (or 1107477 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The spelling of 1717201406421 in words is "one trillion, seven hundred seventeen billion, two hundred one million, four hundred six thousand, four hundred twenty-one".