13854888889 has 4 divisors (see below), whose sum is σ = 13882109220. Its totient is φ = 13827668560.

The previous prime is 13854888857. The next prime is 13854888893. The reversal of 13854888889 is 98888845831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98888845831 = 58043 ⋅1703717.

It can be written as a sum of positive squares in 2 ways, for example, as 5868785664 + 7986103225 = 76608^2 + 89365^2 .

It is a cyclic number.

It is not a de Polignac number, because 13854888889 - 2⁵ = 13854888857 is a prime.

It is a super-2 number, since 2×13854888889² (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 (13854882889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13609402 + ... + 13610419.

It is an arithmetic number, because the mean of its divisors is an integer number (3470527305).

Almost surely, 2^13854888889 is an apocalyptic number.

It is an amenable number.

13854888889 is a deficient number, since it is larger than the sum of its proper divisors (27220331).

13854888889 is an equidigital number, since it uses as much as digits as its factorization.

13854888889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27220330.

The product of its digits is 141557760, while the sum is 70.

The spelling of 13854888889 in words is "thirteen billion, eight hundred fifty-four million, eight hundred eighty-eight thousand, eight hundred eighty-nine".