13440450134452 has 24 divisors (see below), whose sum is σ = 25659255504960. Its totient is φ = 6109244482560.

The previous prime is 13440450134273. The next prime is 13440450134467. The reversal of 13440450134452 is 25443105404431.

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, 4327924 + ... + 6753652.

It is an arithmetic number, because the mean of its divisors is an integer number (1069135646040).

Almost surely, 2^{13440450134452} is an apocalyptic number.

It is an amenable number.

13440450134452 is a deficient number, since it is larger than the sum of its proper divisors (12218805370508).

13440450134452 is a wasteful number, since it uses less digits than its factorization.

13440450134452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551671 (or 2551669 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 13440450134452 its reverse (25443105404431), we get a palindrome (38883555538883).

The spelling of 13440450134452 in words is "thirteen trillion, four hundred forty billion, four hundred fifty million, one hundred thirty-four thousand, four hundred fifty-two".