13138435348 has 6 divisors (see below), whose sum is σ = 22992261866. Its totient is φ = 6569217672.

The previous prime is 13138435327. The next prime is 13138435351. The reversal of 13138435348 is 84353483131.

It can be written as a sum of positive squares in only one way, i.e., 12831905284 + 306530064 = 113278^2 + 17508^2 .

It is a super-2 number, since 2×13138435348² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1642304415 + ... + 1642304422.

Almost surely, 2^13138435348 is an apocalyptic number.

It is an amenable number.

13138435348 is a deficient number, since it is larger than the sum of its proper divisors (9853826518).

13138435348 is a wasteful number, since it uses less digits than its factorization.

13138435348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284608841 (or 3284608839 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The spelling of 13138435348 in words is "thirteen billion, one hundred thirty-eight million, four hundred thirty-five thousand, three hundred forty-eight".