423171719919 has 12 divisors (see below), whose sum is σ = 658267120056. Its totient is φ = 260413366032.

The previous prime is 423171719897. The next prime is 423171719939. The reversal of 423171719919 is 919917171324.

423171719919 is a `hidden beast` number, since 423 + 1 + 7 + 17 + 199 + 19 = 666.

It is not a de Polignac number, because 423171719919 - 2⁷ = 423171719791 is a prime.

It is a super-2 number, since 2×423171719919² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423171719939) 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, 1808426037 + ... + 1808426270.

It is an arithmetic number, because the mean of its divisors is an integer number (54855593338).

Almost surely, 2^423171719919 is an apocalyptic number.

423171719919 is a deficient number, since it is larger than the sum of its proper divisors (235095400137).

423171719919 is a wasteful number, since it uses less digits than its factorization.

423171719919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3616852326 (or 3616852323 counting only the distinct ones).

The product of its digits is 857304, while the sum is 54.

The spelling of 423171719919 in words is "four hundred twenty-three billion, one hundred seventy-one million, seven hundred nineteen thousand, nine hundred nineteen".