1344634512005 has 8 divisors (see below), whose sum is σ = 1708476791832. Its totient is φ = 1012430691328.

The previous prime is 1344634511951. The next prime is 1344634512041. The reversal of 1344634512005 is 5002154364431.

It can be written as a sum of positive squares in 4 ways, for example, as 564929617924 + 779704894081 = 751618^2 + 883009^2 .

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 1344634512005 - 2²⁸ = 1344366076549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1344634512005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7909614692 + ... + 7909614861.

It is an arithmetic number, because the mean of its divisors is an integer number (213559598979).

Almost surely, 2^{1344634512005} is an apocalyptic number.

It is an amenable number.

1344634512005 is a deficient number, since it is larger than the sum of its proper divisors (363842279827).

1344634512005 is a wasteful number, since it uses less digits than its factorization.

1344634512005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15819229575.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 1344634512005 its reverse (5002154364431), we get a palindrome (6346788876436).

The spelling of 1344634512005 in words is "one trillion, three hundred forty-four billion, six hundred thirty-four million, five hundred twelve thousand, five".