43081489919 has 8 divisors (see below), whose sum is σ = 46416371232. Its totient is φ = 39749597280.

The previous prime is 43081489877. The next prime is 43081489921. The reversal of 43081489919 is 91998418034.

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 43081489919 - 2¹⁶ = 43081424383 is a prime.

It is a super-2 number, since 2×43081489919² (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 (43081489999) 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, 717179 + ... + 774924.

It is an arithmetic number, because the mean of its divisors is an integer number (5802046404).

Almost surely, 2^43081489919 is an apocalyptic number.

43081489919 is a deficient number, since it is larger than the sum of its proper divisors (3334881313).

43081489919 is a wasteful number, since it uses less digits than its factorization.

43081489919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494337.

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 43081489919 in words is "forty-three billion, eighty-one million, four hundred eighty-nine thousand, nine hundred nineteen".