21414504563 has 8 divisors (see below), whose sum is σ = 22686143040. Its totient is φ = 20144195200.

The previous prime is 21414504547. The next prime is 21414504569. The reversal of 21414504563 is 36540541412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21414504563 - 2⁴ = 21414504547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21414504569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299003 + ... + 363636.

It is an arithmetic number, because the mean of its divisors is an integer number (2835767880).

Almost surely, 2^21414504563 is an apocalyptic number.

21414504563 is a deficient number, since it is larger than the sum of its proper divisors (1271638477).

21414504563 is a wasteful number, since it uses less digits than its factorization.

21414504563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664557.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 21414504563 in words is "twenty-one billion, four hundred fourteen million, five hundred four thousand, five hundred sixty-three".