13535404020420 has 48 divisors (see below), whose sum is σ = 38078748028608. Its totient is φ = 3592334712960.

The previous prime is 13535404020403. The next prime is 13535404020431. The reversal of 13535404020420 is 2402040453531.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534560959 + ... + 534586278.

It is an arithmetic number, because the mean of its divisors is an integer number (793307250596).

Almost surely, 2^{13535404020420} is an apocalyptic number.

13535404020420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13535404020420 is an abundant number, since it is smaller than the sum of its proper divisors (24543344008188).

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

13535404020420 is a wasteful number, since it uses less digits than its factorization.

13535404020420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069147460 (or 1069147458 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 13535404020420 its reverse (2402040453531), we get a palindrome (15937444473951).

The spelling of 13535404020420 in words is "thirteen trillion, five hundred thirty-five billion, four hundred four million, twenty thousand, four hundred twenty".