21335308469 has 8 divisors (see below), whose sum is σ = 21471982080. Its totient is φ = 21198705696.

The previous prime is 21335308453. The next prime is 21335308471. The reversal of 21335308469 is 96480353312.

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 21335308469 - 2⁴ = 21335308453 is a prime.

It is a super-2 number, since 2×21335308469² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21335308429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671852 + ... + 702890.

It is an arithmetic number, because the mean of its divisors is an integer number (2683997760).

Almost surely, 2^21335308469 is an apocalyptic number.

It is an amenable number.

21335308469 is a deficient number, since it is larger than the sum of its proper divisors (136673611).

21335308469 is a wasteful number, since it uses less digits than its factorization.

21335308469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35419.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 21335308469 in words is "twenty-one billion, three hundred thirty-five million, three hundred eight thousand, four hundred sixty-nine".