23435629569 has 27 divisors (see below), whose sum is σ = 37216657569. Its totient is φ = 14200350120.

The previous prime is 23435629559. The next prime is 23435629571. The reversal of 23435629569 is 96592653432.

It is a happy number.

The square root of 23435629569 is 153087.

It is a perfect power (a square), and thus also a powerful number.

23435629569 is a `hidden beast` number, since 2 + 3 + 4 + 3 + 5 + 629 + 5 + 6 + 9 = 666.

It is not a de Polignac number, because 23435629569 - 2⁹ = 23435629057 is a prime.

It is a super-2 number, since 2×23435629569² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (23435629559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5049552 + ... + 5054190.

Almost surely, 2^23435629569 is an apocalyptic number.

23435629569 is the 153087-th square number.

23435629569 is the 76544-th centered octagonal number.

It is an amenable number.

23435629569 is a deficient number, since it is larger than the sum of its proper divisors (13781028000).

23435629569 is an frugal number, since it uses more digits than its factorization.

23435629569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9306 (or 4653 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 54.

The spelling of 23435629569 in words is "twenty-three billion, four hundred thirty-five million, six hundred twenty-nine thousand, five hundred sixty-nine".