20888648804047 has 8 divisors (see below), whose sum is σ = 20916075026000. Its totient is φ = 20861223266304.

The previous prime is 20888648804011. The next prime is 20888648804057. The reversal of 20888648804047 is 74040884688802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20888648804047 - 2³⁹ = 20338892990159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20888648804057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97054888 + ... + 97269874.

It is an arithmetic number, because the mean of its divisors is an integer number (2614509378250).

Almost surely, 2^{20888648804047} is an apocalyptic number.

20888648804047 is a deficient number, since it is larger than the sum of its proper divisors (27426221953).

20888648804047 is a wasteful number, since it uses less digits than its factorization.

20888648804047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342105.

The product of its (nonzero) digits is 176160768, while the sum is 67.

The spelling of 20888648804047 in words is "twenty trillion, eight hundred eighty-eight billion, six hundred forty-eight million, eight hundred four thousand, forty-seven".