23638856495340 has 288 divisors, whose sum is σ = 70160850418176. Its totient is φ = 5945888332800.

The previous prime is 23638856495333. The next prime is 23638856495341. The reversal of 23638856495340 is 4359465883632.

It is not an unprimeable number, because it can be changed into a prime (23638856495341) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8291424915 + ... + 8291427765.

It is an arithmetic number, because the mean of its divisors is an integer number (243614063952).

Almost surely, 2^{23638856495340} is an apocalyptic number.

23638856495340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23638856495340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35080425209088).

23638856495340 is an abundant number, since it is smaller than the sum of its proper divisors (46521993922836).

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

23638856495340 is a wasteful number, since it uses less digits than its factorization.

23638856495340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4437 (or 4416 counting only the distinct ones).

The product of its (nonzero) digits is 447897600, while the sum is 66.

The spelling of 23638856495340 in words is "twenty-three trillion, six hundred thirty-eight billion, eight hundred fifty-six million, four hundred ninety-five thousand, three hundred forty".