6444710613413 has 4 divisors (see below), whose sum is σ = 6448048114368. Its totient is φ = 6441373112460.

The previous prime is 6444710613323. The next prime is 6444710613421. The reversal of 6444710613413 is 3143160174446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6444710613413 - 2⁴² = 2046664102309 is a prime.

It is a super-3 number, since 3×6444710613413³ (a number of 39 digits) contains 333 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 (6444710613013) 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, 1668747581 + ... + 1668751442.

It is an arithmetic number, because the mean of its divisors is an integer number (1612012028592).

Almost surely, 2^{6444710613413} is an apocalyptic number.

It is an amenable number.

6444710613413 is a deficient number, since it is larger than the sum of its proper divisors (3337500955).

6444710613413 is a wasteful number, since it uses less digits than its factorization.

6444710613413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337500954.

The product of its (nonzero) digits is 580608, while the sum is 44.

Adding to 6444710613413 its reverse (3143160174446), we get a palindrome (9587870787859).

The spelling of 6444710613413 in words is "six trillion, four hundred forty-four billion, seven hundred ten million, six hundred thirteen thousand, four hundred thirteen".