13286815860 has 48 divisors (see below), whose sum is σ = 37208449152. Its totient is φ = 3542640000.

The previous prime is 13286815859. The next prime is 13286815909. The reversal of 13286815860 is 6851868231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 599985 + ... + 621735.

It is an arithmetic number, because the mean of its divisors is an integer number (775176024).

Almost surely, 2^13286815860 is an apocalyptic number.

13286815860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13286815860 is an abundant number, since it is smaller than the sum of its proper divisors (23921633292).

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

13286815860 is a wasteful number, since it uses less digits than its factorization.

13286815860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31944 (or 31942 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 13286815860 in words is "thirteen billion, two hundred eighty-six million, eight hundred fifteen thousand, eight hundred sixty".