13520342425434 has 96 divisors (see below), whose sum is σ = 29765080787904. Its totient is φ = 4091312010240.

The previous prime is 13520342425411. The next prime is 13520342425451. The reversal of 13520342425434 is 43452424302531.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 622673362 + ... + 622695074.

It is an arithmetic number, because the mean of its divisors is an integer number (310052924874).

Almost surely, 2^{13520342425434} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13520342425434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14882540393952).

13520342425434 is an abundant number, since it is smaller than the sum of its proper divisors (16244738362470).

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

13520342425434 is a wasteful number, since it uses less digits than its factorization.

13520342425434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31872 (or 31859 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 42.

Adding to 13520342425434 its reverse (43452424302531), we get a palindrome (56972766727965).

The spelling of 13520342425434 in words is "thirteen trillion, five hundred twenty billion, three hundred forty-two million, four hundred twenty-five thousand, four hundred thirty-four".