17434913426421 has 16 divisors (see below), whose sum is σ = 23367377494464. Its totient is φ = 11562864436224.

The previous prime is 17434913426419. The next prime is 17434913426459. The reversal of 17434913426421 is 12462431943471.

It is not a de Polignac number, because 17434913426421 - 2¹ = 17434913426419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17434913426921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41890275 + ... + 42304431.

It is an arithmetic number, because the mean of its divisors is an integer number (1460461093404).

Almost surely, 2^{17434913426421} is an apocalyptic number.

It is an amenable number.

17434913426421 is a deficient number, since it is larger than the sum of its proper divisors (5932464068043).

17434913426421 is a wasteful number, since it uses less digits than its factorization.

17434913426421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487060.

The product of its digits is 3483648, while the sum is 51.

The spelling of 17434913426421 in words is "seventeen trillion, four hundred thirty-four billion, nine hundred thirteen million, four hundred twenty-six thousand, four hundred twenty-one".