13453243256 has 16 divisors (see below), whose sum is σ = 25249552440. Its totient is φ = 6720029280.

The previous prime is 13453243207. The next prime is 13453243273. The reversal of 13453243256 is 65234235431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815366 + ... + 831701.

Almost surely, 2^13453243256 is an apocalyptic number.

It is an amenable number.

13453243256 is a deficient number, since it is larger than the sum of its proper divisors (11796309184).

13453243256 is a wasteful number, since it uses less digits than its factorization.

13453243256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648094 (or 1648090 counting only the distinct ones).

The product of its digits is 259200, while the sum is 38.

Adding to 13453243256 its reverse (65234235431), we get a palindrome (78687478687).

The spelling of 13453243256 in words is "thirteen billion, four hundred fifty-three million, two hundred forty-three thousand, two hundred fifty-six".