13888814451 has 4 divisors (see below), whose sum is σ = 18518419272. Its totient is φ = 9259209632.

The previous prime is 13888814447. The next prime is 13888814453. The reversal of 13888814451 is 15441888831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13888814451 - 2² = 13888814447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13888814394 and 13888814403.

It is not an unprimeable number, because it can be changed into a prime (13888814453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2314802406 + ... + 2314802411.

It is an arithmetic number, because the mean of its divisors is an integer number (4629604818).

Almost surely, 2^13888814451 is an apocalyptic number.

13888814451 is a deficient number, since it is larger than the sum of its proper divisors (4629604821).

13888814451 is an equidigital number, since it uses as much as digits as its factorization.

13888814451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4629604820.

The product of its digits is 983040, while the sum is 51.

The spelling of 13888814451 in words is "thirteen billion, eight hundred eighty-eight million, eight hundred fourteen thousand, four hundred fifty-one".