13436813140 has 12 divisors (see below), whose sum is σ = 28217307636. Its totient is φ = 5374725248.

The previous prime is 13436813111. The next prime is 13436813171. The reversal of 13436813140 is 4131863431.

It can be written as a sum of positive squares in 2 ways, for example, as 10560850756 + 2875962384 = 102766^2 + 53628^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13436813096 and 13436813105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335920309 + ... + 335920348.

It is an arithmetic number, because the mean of its divisors is an integer number (2351442303).

Almost surely, 2^13436813140 is an apocalyptic number.

13436813140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13436813140 is an abundant number, since it is smaller than the sum of its proper divisors (14780494496).

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

13436813140 is a wasteful number, since it uses less digits than its factorization.

13436813140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671840666 (or 671840664 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 13436813140 in words is "thirteen billion, four hundred thirty-six million, eight hundred thirteen thousand, one hundred forty".