43384784289 has 24 divisors (see below), whose sum is σ = 73408023648. Its totient is φ = 22537549440.

The previous prime is 43384784263. The next prime is 43384784297. The reversal of 43384784289 is 98248748334.

It is a happy number.

43384784289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43384784289 - 2⁷ = 43384784161 is a prime.

It is a super-2 number, since 2×43384784289² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43384784089) 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, 13413592 + ... + 13416825.

It is an arithmetic number, because the mean of its divisors is an integer number (3058667652).

Almost surely, 2^43384784289 is an apocalyptic number.

43384784289 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

43384784289 is a deficient number, since it is larger than the sum of its proper divisors (30023239359).

43384784289 is a wasteful number, since it uses less digits than its factorization.

43384784289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26830445 (or 26830438 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 60.

The spelling of 43384784289 in words is "forty-three billion, three hundred eighty-four million, seven hundred eighty-four thousand, two hundred eighty-nine".