43994549489 has 8 divisors (see below), whose sum is σ = 48710383968. Its totient is φ = 39398103360.

The previous prime is 43994549471. The next prime is 43994549519. The reversal of 43994549489 is 98494549934.

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

It is not a de Polignac number, because 43994549489 - 2¹² = 43994545393 is a prime.

It is a super-2 number, since 2×43994549489² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43994549089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29846312 + ... + 29847785.

It is an arithmetic number, because the mean of its divisors is an integer number (6088797996).

Almost surely, 2^43994549489 is an apocalyptic number.

It is an amenable number.

43994549489 is a deficient number, since it is larger than the sum of its proper divisors (4715834479).

43994549489 is a wasteful number, since it uses less digits than its factorization.

43994549489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59694175.

The product of its digits is 201553920, while the sum is 68.

The spelling of 43994549489 in words is "forty-three billion, nine hundred ninety-four million, five hundred forty-nine thousand, four hundred eighty-nine".