23563435012 has 24 divisors (see below), whose sum is σ = 44732171736. Its totient is φ = 10796045568.

The previous prime is 23563435009. The next prime is 23563435043. The reversal of 23563435012 is 21053436532.

It can be written as a sum of positive squares in 4 ways, for example, as 4404445956 + 19158989056 = 66366^2 + 138416^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1646683 + ... + 1660930.

It is an arithmetic number, because the mean of its divisors is an integer number (1863840489).

Almost surely, 2^23563435012 is an apocalyptic number.

It is an amenable number.

23563435012 is a deficient number, since it is larger than the sum of its proper divisors (21168736724).

23563435012 is a wasteful number, since it uses less digits than its factorization.

23563435012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307767 (or 3307765 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 34.

The spelling of 23563435012 in words is "twenty-three billion, five hundred sixty-three million, four hundred thirty-five thousand, twelve".