23653476561 has 32 divisors (see below), whose sum is σ = 39001697280. Its totient is φ = 12536251200.

The previous prime is 23653476559. The next prime is 23653476619. The reversal of 23653476561 is 16567435632.

It is not a de Polignac number, because 23653476561 - 2¹ = 23653476559 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23653476561.

It is not an unprimeable number, because it can be changed into a prime (23653436561) 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 31 ways as a sum of consecutive naturals, for example, 1442805 + ... + 1459106.

It is an arithmetic number, because the mean of its divisors is an integer number (1218803040).

Almost surely, 2^23653476561 is an apocalyptic number.

It is an amenable number.

23653476561 is a deficient number, since it is larger than the sum of its proper divisors (15348220719).

23653476561 is a wasteful number, since it uses less digits than its factorization.

23653476561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901957.

The product of its digits is 2721600, while the sum is 48.

The spelling of 23653476561 in words is "twenty-three billion, six hundred fifty-three million, four hundred seventy-six thousand, five hundred sixty-one".