43398507459 has 4 divisors (see below), whose sum is σ = 57864676616. Its totient is φ = 28932338304.

The previous prime is 43398507433. The next prime is 43398507463. The reversal of 43398507459 is 95470589334.

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

It is not a de Polignac number, because 43398507459 - 2¹⁶ = 43398441923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43398507399 and 43398507408.

It is not an unprimeable number, because it can be changed into a prime (43398507419) 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, 7233084574 + ... + 7233084579.

It is an arithmetic number, because the mean of its divisors is an integer number (14466169154).

Almost surely, 2^43398507459 is an apocalyptic number.

43398507459 is a deficient number, since it is larger than the sum of its proper divisors (14466169157).

43398507459 is a wasteful number, since it uses less digits than its factorization.

43398507459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14466169156.

The product of its (nonzero) digits is 16329600, while the sum is 57.

The spelling of 43398507459 in words is "forty-three billion, three hundred ninety-eight million, five hundred seven thousand, four hundred fifty-nine".