21334225783 has 4 divisors (see below), whose sum is σ = 22975320088. Its totient is φ = 19693131480.

The previous prime is 21334225751. The next prime is 21334225793. The reversal of 21334225783 is 38752243312.

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 21334225783 - 2⁵ = 21334225751 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 (21334225723) 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, 820547133 + ... + 820547158.

It is an arithmetic number, because the mean of its divisors is an integer number (5743830022).

Almost surely, 2^21334225783 is an apocalyptic number.

21334225783 is a deficient number, since it is larger than the sum of its proper divisors (1641094305).

21334225783 is a wasteful number, since it uses less digits than its factorization.

21334225783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641094304.

The product of its digits is 241920, while the sum is 40.

The spelling of 21334225783 in words is "twenty-one billion, three hundred thirty-four million, two hundred twenty-five thousand, seven hundred eighty-three".