20812483681814 has 16 divisors (see below), whose sum is σ = 34056932474880. Its totient is φ = 9460180689960.

The previous prime is 20812483681799. The next prime is 20812483681817. The reversal of 20812483681814 is 41818638421802.

It is a self number, because there is not a number n which added to its sum of digits gives 20812483681814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20812483681817) 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 7 ways as a sum of consecutive naturals, for example, 3860747 + ... + 7518665.

It is an arithmetic number, because the mean of its divisors is an integer number (2128558279680).

Almost surely, 2^{20812483681814} is an apocalyptic number.

20812483681814 is a deficient number, since it is larger than the sum of its proper divisors (13244448793066).

20812483681814 is a wasteful number, since it uses less digits than its factorization.

20812483681814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3916555.

The product of its (nonzero) digits is 4718592, while the sum is 56.

The spelling of 20812483681814 in words is "twenty trillion, eight hundred twelve billion, four hundred eighty-three million, six hundred eighty-one thousand, eight hundred fourteen".