21416890269 has 8 divisors (see below), whose sum is σ = 30058793440. Its totient is φ = 13526456976.

The previous prime is 21416890223. The next prime is 21416890277. The reversal of 21416890269 is 96209861412.

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

It is not a de Polignac number, because 21416890269 - 2¹¹ = 21416888221 is a prime.

It is a super-2 number, since 2×21416890269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21416890279) 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, 187867402 + ... + 187867515.

It is an arithmetic number, because the mean of its divisors is an integer number (3757349180).

Almost surely, 2^21416890269 is an apocalyptic number.

It is an amenable number.

21416890269 is a deficient number, since it is larger than the sum of its proper divisors (8641903171).

21416890269 is a wasteful number, since it uses less digits than its factorization.

21416890269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375734939.

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 21416890269 in words is "twenty-one billion, four hundred sixteen million, eight hundred ninety thousand, two hundred sixty-nine".