13849139252 has 12 divisors (see below), whose sum is σ = 26100300996. Its totient is φ = 6391910400.

The previous prime is 13849139251. The next prime is 13849139263. The reversal of 13849139252 is 25293194831.

It can be written as a sum of positive squares in 2 ways, for example, as 2420246416 + 11428892836 = 49196^2 + 106906^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13849139197 and 13849139206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13849139251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133164749 + ... + 133164852.

It is an arithmetic number, because the mean of its divisors is an integer number (2175025083).

Almost surely, 2^13849139252 is an apocalyptic number.

It is an amenable number.

13849139252 is a deficient number, since it is larger than the sum of its proper divisors (12251161744).

13849139252 is a wasteful number, since it uses less digits than its factorization.

13849139252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266329618 (or 266329616 counting only the distinct ones).

The product of its digits is 466560, while the sum is 47.

The spelling of 13849139252 in words is "thirteen billion, eight hundred forty-nine million, one hundred thirty-nine thousand, two hundred fifty-two".