21696470269 has 8 divisors (see below), whose sum is σ = 23461515648. Its totient is φ = 19985734080.

The previous prime is 21696470267. The next prime is 21696470273. The reversal of 21696470269 is 96207469612.

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 21696470269 - 2¹ = 21696470267 is a prime.

It is a super-2 number, since 2×21696470269² (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 (21696470267) 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, 13576467 + ... + 13578064.

It is an arithmetic number, because the mean of its divisors is an integer number (2932689456).

Almost surely, 2^21696470269 is an apocalyptic number.

It is an amenable number.

21696470269 is a deficient number, since it is larger than the sum of its proper divisors (1765045379).

21696470269 is a wasteful number, since it uses less digits than its factorization.

21696470269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27154595.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 21696470269 in words is "twenty-one billion, six hundred ninety-six million, four hundred seventy thousand, two hundred sixty-nine".