43605913389 has 4 divisors (see below), whose sum is σ = 58141217856. Its totient is φ = 29070608924.

The previous prime is 43605913381. The next prime is 43605913409. The reversal of 43605913389 is 98331950634.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43605913389 - 2³ = 43605913381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43605913381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7267652229 + ... + 7267652234.

It is an arithmetic number, because the mean of its divisors is an integer number (14535304464).

Almost surely, 2^43605913389 is an apocalyptic number.

It is an amenable number.

43605913389 is a deficient number, since it is larger than the sum of its proper divisors (14535304467).

43605913389 is a wasteful number, since it uses less digits than its factorization.

43605913389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14535304466.

The product of its (nonzero) digits is 2099520, while the sum is 51.

The spelling of 43605913389 in words is "forty-three billion, six hundred five million, nine hundred thirteen thousand, three hundred eighty-nine".