13444430505413 has 8 divisors (see below), whose sum is σ = 13513415208480. Its totient is φ = 13375453266000.

The previous prime is 13444430505383. The next prime is 13444430505439. The reversal of 13444430505413 is 31450503444431.

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 13444430505413 - 2¹⁶ = 13444430439877 is a prime.

It is a super-2 number, since 2×13444430505413² (a number of 27 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 (13444430705413) 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, 1764038 + ... + 5477288.

It is an arithmetic number, because the mean of its divisors is an integer number (1689176901060).

Almost surely, 2^{13444430505413} is an apocalyptic number.

It is an amenable number.

13444430505413 is a deficient number, since it is larger than the sum of its proper divisors (68984703067).

13444430505413 is a wasteful number, since it uses less digits than its factorization.

13444430505413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3731827.

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 13444430505413 its reverse (31450503444431), we get a palindrome (44894933949844).

The spelling of 13444430505413 in words is "thirteen trillion, four hundred forty-four billion, four hundred thirty million, five hundred five thousand, four hundred thirteen".