13280550437820 has 48 divisors (see below), whose sum is σ = 37186706809728. Its totient is φ = 3541369108800.

The previous prime is 13280550437809. The next prime is 13280550437863. The reversal of 13280550437820 is 2873405508231.

It is a self number, because there is not a number n which added to its sum of digits gives 13280550437820.

It is a congruent number.

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, 1529914 + ... + 5376033.

It is an arithmetic number, because the mean of its divisors is an integer number (774723058536).

Almost surely, 2^{13280550437820} is an apocalyptic number.

13280550437820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13280550437820 is an abundant number, since it is smaller than the sum of its proper divisors (23906156371908).

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

13280550437820 is a wasteful number, since it uses less digits than its factorization.

13280550437820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6938010 (or 6938008 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 13280550437820 in words is "thirteen trillion, two hundred eighty billion, five hundred fifty million, four hundred thirty-seven thousand, eight hundred twenty".