13278302453 has 6 divisors (see below), whose sum is σ = 14378280354. Its totient is φ = 12256894416.

The previous prime is 13278302449. The next prime is 13278302459. The reversal of 13278302453 is 35420387231.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 748186609 + 12530115844 = 27353^2 + 111938^2 .

It is not a de Polignac number, because 13278302453 - 2² = 13278302449 is a prime.

It is a super-3 number, since 3×13278302453³ (a number of 31 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 (13278302459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39284750 + ... + 39285087.

It is an arithmetic number, because the mean of its divisors is an integer number (2396380059).

Almost surely, 2^13278302453 is an apocalyptic number.

13278302453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13278302453 is a deficient number, since it is larger than the sum of its proper divisors (1099977901).

13278302453 is an equidigital number, since it uses as much as digits as its factorization.

13278302453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78569863 (or 78569850 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

Adding to 13278302453 its reverse (35420387231), we get a palindrome (48698689684).

The spelling of 13278302453 in words is "thirteen billion, two hundred seventy-eight million, three hundred two thousand, four hundred fifty-three".