20493105483 has 8 divisors (see below), whose sum is σ = 27325577728. Its totient is φ = 13661351784.

The previous prime is 20493105469. The next prime is 20493105499. The reversal of 20493105483 is 38450139402.

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

It is not a de Polignac number, because 20493105483 - 2¹⁶ = 20493039947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20493105433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109135 + ... + 229992.

It is an arithmetic number, because the mean of its divisors is an integer number (3415697216).

Almost surely, 2^20493105483 is an apocalyptic number.

20493105483 is a deficient number, since it is larger than the sum of its proper divisors (6832472245).

20493105483 is a wasteful number, since it uses less digits than its factorization.

20493105483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359273.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 20493105483 in words is "twenty billion, four hundred ninety-three million, one hundred five thousand, four hundred eighty-three".