13286815848 has 48 divisors (see below), whose sum is σ = 36478087620. Its totient is φ = 4368266496.

The previous prime is 13286815813. The next prime is 13286815859. The reversal of 13286815848 is 84851868231.

It can be written as a sum of positive squares in 2 ways, for example, as 12638706084 + 648109764 = 112422^2 + 25458^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13286815794 and 13286815803.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1258711 + ... + 1269222.

Almost surely, 2^13286815848 is an apocalyptic number.

13286815848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13286815848 is an abundant number, since it is smaller than the sum of its proper divisors (23191271772).

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

13286815848 is a wasteful number, since it uses less digits than its factorization.

13286815848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528018 (or 2528011 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 54.

The spelling of 13286815848 in words is "thirteen billion, two hundred eighty-six million, eight hundred fifteen thousand, eight hundred forty-eight".