20104587645783 has 32 divisors (see below), whose sum is σ = 26943542645760. Its totient is φ = 13334525821440.

The previous prime is 20104587645761. The next prime is 20104587645787. The reversal of 20104587645783 is 38754678540102.

It is not a de Polignac number, because 20104587645783 - 2⁶ = 20104587645719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20104587645787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2402264623 + ... + 2402272991.

It is an arithmetic number, because the mean of its divisors is an integer number (841985707680).

Almost surely, 2^{20104587645783} is an apocalyptic number.

20104587645783 is a deficient number, since it is larger than the sum of its proper divisors (6838954999977).

20104587645783 is a wasteful number, since it uses less digits than its factorization.

20104587645783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13279.

The product of its (nonzero) digits is 45158400, while the sum is 60.

The spelling of 20104587645783 in words is "twenty trillion, one hundred four billion, five hundred eighty-seven million, six hundred forty-five thousand, seven hundred eighty-three".