43549332479 has 4 divisors (see below), whose sum is σ = 44199322584. Its totient is φ = 42899342376.

The previous prime is 43549332473. The next prime is 43549332503. The reversal of 43549332479 is 97423394534.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43549332479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43549332479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43549332473) 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, 324994952 + ... + 324995085.

It is an arithmetic number, because the mean of its divisors is an integer number (11049830646).

Almost surely, 2^43549332479 is an apocalyptic number.

43549332479 is a deficient number, since it is larger than the sum of its proper divisors (649990105).

43549332479 is an equidigital number, since it uses as much as digits as its factorization.

43549332479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649990104.

The product of its digits is 9797760, while the sum is 53.

The spelling of 43549332479 in words is "forty-three billion, five hundred forty-nine million, three hundred thirty-two thousand, four hundred seventy-nine".