21414754800668 has 12 divisors (see below), whose sum is σ = 37475868526992. Its totient is φ = 10707363792960.

The previous prime is 21414754800641. The next prime is 21414754800713. The reversal of 21414754800668 is 86600845741412.

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, 684521 + ... + 6580127.

It is an arithmetic number, because the mean of its divisors is an integer number (3122989043916).

Almost surely, 2^{21414754800668} is an apocalyptic number.

It is an amenable number.

21414754800668 is a deficient number, since it is larger than the sum of its proper divisors (16061113726324).

21414754800668 is a wasteful number, since it uses less digits than its factorization.

21414754800668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6803692 (or 6803690 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 56.

The spelling of 21414754800668 in words is "twenty-one trillion, four hundred fourteen billion, seven hundred fifty-four million, eight hundred thousand, six hundred sixty-eight".