23954534669568 has 144 divisors (see below), whose sum is σ = 64962820855296. Its totient is φ = 7833473556480.

The previous prime is 23954534669557. The next prime is 23954534669627. The reversal of 23954534669568 is 86596643545932.

It is a Cunningham number, because it is equal to 4894337²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 23954534669568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 626456146 + ... + 626494382.

It is an arithmetic number, because the mean of its divisors is an integer number (451130700384).

Almost surely, 2^{23954534669568} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23954534669568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32481410427648).

23954534669568 is an abundant number, since it is smaller than the sum of its proper divisors (41008286185728).

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

23954534669568 is a wasteful number, since it uses less digits than its factorization.

23954534669568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53700 (or 53686 counting only the distinct ones).

The product of its digits is 5038848000, while the sum is 75.

The spelling of 23954534669568 in words is "twenty-three trillion, nine hundred fifty-four billion, five hundred thirty-four million, six hundred sixty-nine thousand, five hundred sixty-eight".