13453532512 has 72 divisors (see below), whose sum is σ = 30849131880. Its totient is φ = 5758663680.

The previous prime is 13453532461. The next prime is 13453532537. The reversal of 13453532512 is 21523535431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1376539 + ... + 1386277.

It is an arithmetic number, because the mean of its divisors is an integer number (428460165).

Almost surely, 2^13453532512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13453532512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15424565940).

13453532512 is an abundant number, since it is smaller than the sum of its proper divisors (17395599368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13453532512 is an equidigital number, since it uses as much as digits as its factorization.

13453532512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10644 (or 10629 counting only the distinct ones).

The product of its digits is 54000, while the sum is 34.

The spelling of 13453532512 in words is "thirteen billion, four hundred fifty-three million, five hundred thirty-two thousand, five hundred twelve".