43384711381 has 8 divisors (see below), whose sum is σ = 47392484544. Its totient is φ = 39387556320.

The previous prime is 43384711367. The next prime is 43384711429. The reversal of 43384711381 is 18311748334.

It is a happy number.

43384711381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43384711381 - 2²⁷ = 43250493653 is a prime.

It is a super-2 number, since 2×43384711381² (a number of 22 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 (43384711301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2645976 + ... + 2662321.

It is an arithmetic number, because the mean of its divisors is an integer number (5924060568).

Almost surely, 2^43384711381 is an apocalyptic number.

It is an amenable number.

43384711381 is a deficient number, since it is larger than the sum of its proper divisors (4007773163).

43384711381 is a wasteful number, since it uses less digits than its factorization.

43384711381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5309051.

The product of its digits is 193536, while the sum is 43.

The spelling of 43384711381 in words is "forty-three billion, three hundred eighty-four million, seven hundred eleven thousand, three hundred eighty-one".