21914545484023 has 4 divisors (see below), whose sum is σ = 21950063386560. Its totient is φ = 21879027581488.

The previous prime is 21914545483981. The next prime is 21914545484033. The reversal of 21914545484023 is 32048454541912.

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

It is a cyclic number.

It is not a de Polignac number, because 21914545484023 - 2¹⁷ = 21914545352951 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 (21914545484033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17758950343 + ... + 17758951576.

It is an arithmetic number, because the mean of its divisors is an integer number (5487515846640).

Almost surely, 2^{21914545484023} is an apocalyptic number.

21914545484023 is a deficient number, since it is larger than the sum of its proper divisors (35517902537).

21914545484023 is an equidigital number, since it uses as much as digits as its factorization.

21914545484023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35517902536.

The product of its (nonzero) digits is 5529600, while the sum is 52.

The spelling of 21914545484023 in words is "twenty-one trillion, nine hundred fourteen billion, five hundred forty-five million, four hundred eighty-four thousand, twenty-three".