13445422439 has 4 divisors (see below), whose sum is σ = 13445719560. Its totient is φ = 13445125320.

The previous prime is 13445422433. The next prime is 13445422477. The reversal of 13445422439 is 93422454431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93422454431 = 409 ⋅228416759.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13445422439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13445422396 and 13445422405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445422433) 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, 65024 + ... + 176405.

It is an arithmetic number, because the mean of its divisors is an integer number (3361429890).

Almost surely, 2^13445422439 is an apocalyptic number.

13445422439 is a deficient number, since it is larger than the sum of its proper divisors (297121).

13445422439 is an equidigital number, since it uses as much as digits as its factorization.

13445422439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297120.

The product of its digits is 414720, while the sum is 41.

The spelling of 13445422439 in words is "thirteen billion, four hundred forty-five million, four hundred twenty-two thousand, four hundred thirty-nine".