23217810669 has 12 divisors (see below), whose sum is σ = 34693280700. Its totient is φ = 14944797504.

The previous prime is 23217810631. The next prime is 23217810691. The reversal of 23217810669 is 96601871232.

It can be written as a sum of positive squares in 2 ways, for example, as 11502562500 + 11715248169 = 107250^2 + 108237^2 .

It is not a de Polignac number, because 23217810669 - 2⁹ = 23217810157 is a prime.

It is a super-2 number, since 2×23217810669² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23217810169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44478304 + ... + 44478825.

It is an arithmetic number, because the mean of its divisors is an integer number (2891106725).

Almost surely, 2^23217810669 is an apocalyptic number.

23217810669 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

23217810669 is a deficient number, since it is larger than the sum of its proper divisors (11475470031).

23217810669 is a wasteful number, since it uses less digits than its factorization.

23217810669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88957164 (or 88957161 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 23217810669 in words is "twenty-three billion, two hundred seventeen million, eight hundred ten thousand, six hundred sixty-nine".