13888222631281 has 16 divisors (see below), whose sum is σ = 14383299744000. Its totient is φ = 13399602128640.

The previous prime is 13888222631279. The next prime is 13888222631287. The reversal of 13888222631281 is 18213622288831.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13888222631281 - 2¹ = 13888222631279 is a prime.

It is a super-2 number, since 2×13888222631281² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13888222631287) 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, 5352345 + ... + 7511593.

It is an arithmetic number, because the mean of its divisors is an integer number (898956234000).

Almost surely, 2^{13888222631281} is an apocalyptic number.

It is an amenable number.

13888222631281 is a deficient number, since it is larger than the sum of its proper divisors (495077112719).

13888222631281 is a wasteful number, since it uses less digits than its factorization.

13888222631281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160744.

The product of its digits is 3538944, while the sum is 55.

The spelling of 13888222631281 in words is "thirteen trillion, eight hundred eighty-eight billion, two hundred twenty-two million, six hundred thirty-one thousand, two hundred eighty-one".