13561383138 has 16 divisors (see below), whose sum is σ = 27251312736. Its totient is φ = 4499036640.

The previous prime is 13561383097. The next prime is 13561383167. The reversal of 13561383138 is 83138316531.

It is a super-2 number, since 2×13561383138² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13561383138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5354731 + ... + 5357262.

It is an arithmetic number, because the mean of its divisors is an integer number (1703207046).

Almost surely, 2^13561383138 is an apocalyptic number.

13561383138 is an abundant number, since it is smaller than the sum of its proper divisors (13689929598).

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

13561383138 is a wasteful number, since it uses less digits than its factorization.

13561383138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10712209.

The product of its digits is 155520, while the sum is 42.

Adding to 13561383138 its reverse (83138316531), we get a palindrome (96699699669).

The spelling of 13561383138 in words is "thirteen billion, five hundred sixty-one million, three hundred eighty-three thousand, one hundred thirty-eight".