43421435112319 has 24 divisors (see below), whose sum is σ = 47981808967680. Its totient is φ = 39263897442000.

The previous prime is 43421435112287. The next prime is 43421435112323. The reversal of 43421435112319 is 91321153412434.

It is a happy number.

It is not a de Polignac number, because 43421435112319 - 2⁵ = 43421435112287 is a prime.

It is a super-2 number, since 2×43421435112319² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43421435112359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282778774 + ... + 282932284.

It is an arithmetic number, because the mean of its divisors is an integer number (1999242040320).

Almost surely, 2^{43421435112319} is an apocalyptic number.

43421435112319 is a deficient number, since it is larger than the sum of its proper divisors (4560373855361).

43421435112319 is a wasteful number, since it uses less digits than its factorization.

43421435112319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165963 (or 165952 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The spelling of 43421435112319 in words is "forty-three trillion, four hundred twenty-one billion, four hundred thirty-five million, one hundred twelve thousand, three hundred nineteen".