23534043564 has 12 divisors (see below), whose sum is σ = 54912768344. Its totient is φ = 7844681184.

The previous prime is 23534043563. The next prime is 23534043569. The reversal of 23534043564 is 46534043532.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (23534043563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 980585137 + ... + 980585160.

Almost surely, 2^23534043564 is an apocalyptic number.

It is an amenable number.

23534043564 is an abundant number, since it is smaller than the sum of its proper divisors (31378724780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23534043564 is a wasteful number, since it uses less digits than its factorization.

23534043564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961170304 (or 1961170302 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 39.

The spelling of 23534043564 in words is "twenty-three billion, five hundred thirty-four million, forty-three thousand, five hundred sixty-four".