21754463427614 has 4 divisors (see below), whose sum is σ = 32631695141424. Its totient is φ = 10877231713806.

The previous prime is 21754463427589. The next prime is 21754463427649. The reversal of 21754463427614 is 41672436445712.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21754463427614.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5438615856902 + ... + 5438615856905.

It is an arithmetic number, because the mean of its divisors is an integer number (8157923785356).

Almost surely, 2^{21754463427614} is an apocalyptic number.

21754463427614 is a deficient number, since it is larger than the sum of its proper divisors (10877231713810).

21754463427614 is a wasteful number, since it uses less digits than its factorization.

21754463427614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10877231713809.

The product of its digits is 27095040, while the sum is 56.

The spelling of 21754463427614 in words is "twenty-one trillion, seven hundred fifty-four billion, four hundred sixty-three million, four hundred twenty-seven thousand, six hundred fourteen".