12434171919 has 16 divisors (see below), whose sum is σ = 18793891200. Its totient is φ = 7249071456.

The previous prime is 12434171917. The next prime is 12434171987. The reversal of 12434171919 is 91917143421.

It is not a de Polignac number, because 12434171919 - 2¹ = 12434171917 is a prime.

It is a super-2 number, since 2×12434171919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12434171917) 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, 8389389 + ... + 8390870.

It is an arithmetic number, because the mean of its divisors is an integer number (1174618200).

Almost surely, 2^12434171919 is an apocalyptic number.

12434171919 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12434171919 is a deficient number, since it is larger than the sum of its proper divisors (6359719281).

12434171919 is a wasteful number, since it uses less digits than its factorization.

12434171919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16780294.

The product of its digits is 54432, while the sum is 42.

The spelling of 12434171919 in words is "twelve billion, four hundred thirty-four million, one hundred seventy-one thousand, nine hundred nineteen".