13868149243 has 32 divisors (see below), whose sum is σ = 15824793600. Its totient is φ = 12064464000.

The previous prime is 13868149241. The next prime is 13868149271. The reversal of 13868149243 is 34294186831.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13868149243 - 2¹ = 13868149241 is a prime.

It is a super-2 number, since 2×13868149243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13868149241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2589018 + ... + 2594368.

It is an arithmetic number, because the mean of its divisors is an integer number (494524800).

Almost surely, 2^13868149243 is an apocalyptic number.

13868149243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13868149243 is a deficient number, since it is larger than the sum of its proper divisors (1956644357).

13868149243 is a wasteful number, since it uses less digits than its factorization.

13868149243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5563.

The product of its digits is 995328, while the sum is 49.

The spelling of 13868149243 in words is "thirteen billion, eight hundred sixty-eight million, one hundred forty-nine thousand, two hundred forty-three".