13440382559 has 4 divisors (see below), whose sum is σ = 13443699504. Its totient is φ = 13437065616.

The previous prime is 13440382547. The next prime is 13440382619. The reversal of 13440382559 is 95528304431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95528304431 = 7 ⋅13646900633.

It is a cyclic number.

It is not a de Polignac number, because 13440382559 - 2⁸ = 13440382303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440322559) 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, 1652387 + ... + 1660500.

It is an arithmetic number, because the mean of its divisors is an integer number (3360924876).

Almost surely, 2^13440382559 is an apocalyptic number.

13440382559 is a deficient number, since it is larger than the sum of its proper divisors (3316945).

13440382559 is an equidigital number, since it uses as much as digits as its factorization.

13440382559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316944.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 13440382559 in words is "thirteen billion, four hundred forty million, three hundred eighty-two thousand, five hundred fifty-nine".