20514143861773 has 4 divisors (see below), whose sum is σ = 20520057426460. Its totient is φ = 20508230297088.

The previous prime is 20514143861749. The next prime is 20514143861801. The reversal of 20514143861773 is 37716834141502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3966797189124 + 16547346672649 = 1991682^2 + 4067843^2 .

It is a cyclic number.

It is not a de Polignac number, because 20514143861773 - 2²⁹ = 20513606990861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20514143861773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514143861873) 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 3 ways as a sum of consecutive naturals, for example, 2956777140 + ... + 2956784077.

It is an arithmetic number, because the mean of its divisors is an integer number (5130014356615).

Almost surely, 2^{20514143861773} is an apocalyptic number.

It is an amenable number.

20514143861773 is a deficient number, since it is larger than the sum of its proper divisors (5913564687).

20514143861773 is an equidigital number, since it uses as much as digits as its factorization.

20514143861773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5913564686.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 20514143861773 in words is "twenty trillion, five hundred fourteen billion, one hundred forty-three million, eight hundred sixty-one thousand, seven hundred seventy-three".