13223026646450 has 24 divisors (see below), whose sum is σ = 26041584244212. Its totient is φ = 4978080619520.

The previous prime is 13223026646441. The next prime is 13223026646519. The reversal of 13223026646450 is 5464662032231.

It can be written as a sum of positive squares in 6 ways, for example, as 4984766210281 + 8238260436169 = 2232659^2 + 2870237^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7778250119 + ... + 7778251818.

Almost surely, 2^{13223026646450} is an apocalyptic number.

13223026646450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13223026646450 is a deficient number, since it is larger than the sum of its proper divisors (12818557597762).

13223026646450 is a wasteful number, since it uses less digits than its factorization.

13223026646450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15556501966 (or 15556501961 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 44.

Adding to 13223026646450 its reverse (5464662032231), we get a palindrome (18687688678681).

The spelling of 13223026646450 in words is "thirteen trillion, two hundred twenty-three billion, twenty-six million, six hundred forty-six thousand, four hundred fifty".