13861648239 has 16 divisors (see below), whose sum is σ = 18536915424. Its totient is φ = 9213782400.

The previous prime is 13861648223. The next prime is 13861648243. The reversal of 13861648239 is 93284616831.

It is not a de Polignac number, because 13861648239 - 2⁴ = 13861648223 is a prime.

It is a super-2 number, since 2×13861648239² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13861648191 and 13861648200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13861648739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1505229 + ... + 1514409.

It is an arithmetic number, because the mean of its divisors is an integer number (1158557214).

Almost surely, 2^13861648239 is an apocalyptic number.

13861648239 is a deficient number, since it is larger than the sum of its proper divisors (4675267185).

13861648239 is an equidigital number, since it uses as much as digits as its factorization.

13861648239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10618.

The product of its digits is 1492992, while the sum is 51.

The spelling of 13861648239 in words is "thirteen billion, eight hundred sixty-one million, six hundred forty-eight thousand, two hundred thirty-nine".