21373282367 has 8 divisors (see below), whose sum is σ = 21398581776. Its totient is φ = 21348001152.

The previous prime is 21373282339. The next prime is 21373282369. The reversal of 21373282367 is 76328237312.

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 21373282367 - 2⁶ = 21373282303 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 (21373282369) 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, 4606973 + ... + 4611609.

It is an arithmetic number, because the mean of its divisors is an integer number (2674822722).

Almost surely, 2^21373282367 is an apocalyptic number.

21373282367 is a deficient number, since it is larger than the sum of its proper divisors (25299409).

21373282367 is a wasteful number, since it uses less digits than its factorization.

21373282367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9097.

The product of its digits is 508032, while the sum is 44.

The spelling of 21373282367 in words is "twenty-one billion, three hundred seventy-three million, two hundred eighty-two thousand, three hundred sixty-seven".