23535664469 has 2 divisors, whose sum is σ = 23535664470. Its totient is φ = 23535664468.

The previous prime is 23535664463. The next prime is 23535664561. The reversal of 23535664469 is 96446653532.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18350224369 + 5185440100 = 135463^2 + 72010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23535664469 is a prime.

It is a super-2 number, since 2×23535664469² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23535664469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23535664463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11767832234 + 11767832235.

It is an arithmetic number, because the mean of its divisors is an integer number (11767832235).

Almost surely, 2^23535664469 is an apocalyptic number.

It is an amenable number.

23535664469 is a deficient number, since it is larger than the sum of its proper divisors (1).

23535664469 is an equidigital number, since it uses as much as digits as its factorization.

23535664469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13996800, while the sum is 53.

The spelling of 23535664469 in words is "twenty-three billion, five hundred thirty-five million, six hundred sixty-four thousand, four hundred sixty-nine".