13187411244 has 72 divisors (see below), whose sum is σ = 40102083840. Its totient is φ = 3569523552.

The previous prime is 13187411243. The next prime is 13187411273. The reversal of 13187411244 is 44211478131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13187411199 and 13187411208.

It is not an unprimeable number, because it can be changed into a prime (13187411243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1372344 + ... + 1381919.

Almost surely, 2^13187411244 is an apocalyptic number.

13187411244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13187411244 is an abundant number, since it is smaller than the sum of its proper divisors (26914672596).

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

13187411244 is a wasteful number, since it uses less digits than its factorization.

13187411244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2754299 (or 2754294 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

Adding to 13187411244 its reverse (44211478131), we get a palindrome (57398889375).

The spelling of 13187411244 in words is "thirteen billion, one hundred eighty-seven million, four hundred eleven thousand, two hundred forty-four".