20862708923823 has 32 divisors (see below), whose sum is σ = 30475123795200. Its totient is φ = 12616565342976.

The previous prime is 20862708923821. The next prime is 20862708923831. The reversal of 20862708923823 is 32832980726802.

It is a happy number.

It is not a de Polignac number, because 20862708923823 - 2¹ = 20862708923821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20862708923821) 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 31 ways as a sum of consecutive naturals, for example, 4987188 + ... + 8160726.

It is an arithmetic number, because the mean of its divisors is an integer number (952347618600).

Almost surely, 2^{20862708923823} is an apocalyptic number.

20862708923823 is a deficient number, since it is larger than the sum of its proper divisors (9612414871377).

20862708923823 is a wasteful number, since it uses less digits than its factorization.

20862708923823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176471.

The product of its (nonzero) digits is 27869184, while the sum is 60.

The spelling of 20862708923823 in words is "twenty trillion, eight hundred sixty-two billion, seven hundred eight million, nine hundred twenty-three thousand, eight hundred twenty-three".