13530234135440 has 80 divisors (see below), whose sum is σ = 34495405652736. Its totient is φ = 4894592409600.

The previous prime is 13530234135413. The next prime is 13530234135499. The reversal of 13530234135440 is 4453143203531.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 13530234135394 and 13530234135403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39662456 + ... + 40002135.

Almost surely, 2^{13530234135440} is an apocalyptic number.

13530234135440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13530234135440 is an abundant number, since it is smaller than the sum of its proper divisors (20965171517296).

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

13530234135440 is a wasteful number, since it uses less digits than its factorization.

13530234135440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79664808 (or 79664802 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 13530234135440 its reverse (4453143203531), we get a palindrome (17983377338971).

The spelling of 13530234135440 in words is "thirteen trillion, five hundred thirty billion, two hundred thirty-four million, one hundred thirty-five thousand, four hundred forty".