108723576902721 has 16 divisors (see below), whose sum is σ = 159150667297728. Its totient is φ = 65473375780800.

The previous prime is 108723576902719. The next prime is 108723576902779. The reversal of 108723576902721 is 127209675327801.

It is a happy number.

It is not a de Polignac number, because 108723576902721 - 2¹ = 108723576902719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108723576902921) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10492522990 + ... + 10492533351.

It is an arithmetic number, because the mean of its divisors is an integer number (9946916706108).

Almost surely, 2^{108723576902721} is an apocalyptic number.

108723576902721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

108723576902721 is a deficient number, since it is larger than the sum of its proper divisors (50427090395007).

108723576902721 is a wasteful number, since it uses less digits than its factorization.

108723576902721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20985056512.

The product of its (nonzero) digits is 17781120, while the sum is 60.

The spelling of 108723576902721 in words is "one hundred eight trillion, seven hundred twenty-three billion, five hundred seventy-six million, nine hundred two thousand, seven hundred twenty-one".