21400114144 has 24 divisors (see below), whose sum is σ = 42142736160. Its totient is φ = 10697197056.

The previous prime is 21400114129. The next prime is 21400114171. The reversal of 21400114144 is 44141100412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34872 + ... + 209800.

It is an arithmetic number, because the mean of its divisors is an integer number (1755947340).

Almost surely, 2^21400114144 is an apocalyptic number.

It is an amenable number.

21400114144 is a deficient number, since it is larger than the sum of its proper divisors (20742622016).

21400114144 is a wasteful number, since it uses less digits than its factorization.

21400114144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178762 (or 178754 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 21400114144 its reverse (44141100412), we get a palindrome (65541214556).

The spelling of 21400114144 in words is "twenty-one billion, four hundred million, one hundred fourteen thousand, one hundred forty-four".