13505363453 has 8 divisors (see below), whose sum is σ = 13646454360. Its totient is φ = 13364585280.

The previous prime is 13505363429. The next prime is 13505363471. The reversal of 13505363453 is 35436350531.

It can be written as a sum of positive squares in 4 ways, for example, as 7502677924 + 6002685529 = 86618^2 + 77477^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13505363453 - 2³² = 9210396157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13505363413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9143 + ... + 164603.

It is an arithmetic number, because the mean of its divisors is an integer number (1705806795).

Almost surely, 2^13505363453 is an apocalyptic number.

It is an amenable number.

13505363453 is a deficient number, since it is larger than the sum of its proper divisors (141090907).

13505363453 is a wasteful number, since it uses less digits than its factorization.

13505363453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156367.

The product of its (nonzero) digits is 243000, while the sum is 38.

The spelling of 13505363453 in words is "thirteen billion, five hundred five million, three hundred sixty-three thousand, four hundred fifty-three".