13456421544052 has 12 divisors (see below), whose sum is σ = 23548876028356. Its totient is φ = 6728171250240.

The previous prime is 13456421544031. The next prime is 13456421544053. The reversal of 13456421544052 is 25044512465431.

It can be written as a sum of positive squares in 2 ways, for example, as 5673180840336 + 7783240703716 = 2381844^2 + 2789846^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13456421543993 and 13456421544011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13456421544053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9107649 + ... + 10481512.

Almost surely, 2^{13456421544052} is an apocalyptic number.

It is an amenable number.

13456421544052 is a deficient number, since it is larger than the sum of its proper divisors (10092454484304).

13456421544052 is a wasteful number, since it uses less digits than its factorization.

13456421544052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19760898 (or 19760896 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 46.

The spelling of 13456421544052 in words is "thirteen trillion, four hundred fifty-six billion, four hundred twenty-one million, five hundred forty-four thousand, fifty-two".