14054021511421 has 16 divisors (see below), whose sum is σ = 14210944553520. Its totient is φ = 13897631946240.

The previous prime is 14054021511419. The next prime is 14054021511589. The reversal of 14054021511421 is 12411512045041.

It can be written as a sum of positive squares in 8 ways, for example, as 675149805625 + 13378871705796 = 821675^2 + 3657714^2 .

It is a cyclic number.

It is not a de Polignac number, because 14054021511421 - 2¹ = 14054021511419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14054021511821) 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, 125739841 + ... + 125851561.

It is an arithmetic number, because the mean of its divisors is an integer number (888184034595).

Almost surely, 2^{14054021511421} is an apocalyptic number.

It is an amenable number.

14054021511421 is a deficient number, since it is larger than the sum of its proper divisors (156923042099).

14054021511421 is a wasteful number, since it uses less digits than its factorization.

14054021511421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114096.

The product of its (nonzero) digits is 6400, while the sum is 31.

Adding to 14054021511421 its reverse (12411512045041), we get a palindrome (26465533556462).

The spelling of 14054021511421 in words is "fourteen trillion, fifty-four billion, twenty-one million, five hundred eleven thousand, four hundred twenty-one".