23520781368 has 48 divisors (see below), whose sum is σ = 72802420080. Its totient is φ = 6720223104.

The previous prime is 23520781343. The next prime is 23520781369. The reversal of 23520781368 is 86318702532.

23520781368 is a `hidden beast` number, since 2 + 3 + 5 + 207 + 81 + 368 = 666.

It is a super-2 number, since 2×23520781368² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23520781369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23333605 + ... + 23334612.

It is an arithmetic number, because the mean of its divisors is an integer number (1516717085).

Almost surely, 2^23520781368 is an apocalyptic number.

23520781368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23520781368 is an abundant number, since it is smaller than the sum of its proper divisors (49281638712).

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

23520781368 is a wasteful number, since it uses less digits than its factorization.

23520781368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46668236 (or 46668229 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 23520781368 in words is "twenty-three billion, five hundred twenty million, seven hundred eighty-one thousand, three hundred sixty-eight".