20473918283109 has 32 divisors (see below), whose sum is σ = 27919984435200. Its totient is φ = 13342034721600.

The previous prime is 20473918283053. The next prime is 20473918283129. The reversal of 20473918283109 is 90138281937402.

It is a happy number.

It is not a de Polignac number, because 20473918283109 - 2¹⁹ = 20473917758821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20473918283129) 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, 416934052 + ... + 416983154.

It is an arithmetic number, because the mean of its divisors is an integer number (872499513600).

Almost surely, 2^{20473918283109} is an apocalyptic number.

It is an amenable number.

20473918283109 is a deficient number, since it is larger than the sum of its proper divisors (7446066152091).

20473918283109 is a wasteful number, since it uses less digits than its factorization.

20473918283109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66705.

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 20473918283109 in words is "twenty trillion, four hundred seventy-three billion, nine hundred eighteen million, two hundred eighty-three thousand, one hundred nine".