20583273349 has 4 divisors (see below), whose sum is σ = 20585519136. Its totient is φ = 20581027564.

The previous prime is 20583273313. The next prime is 20583273409. The reversal of 20583273349 is 94337238502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20583273349 - 2¹⁵ = 20583240581 is a prime.

It is a super-2 number, since 2×20583273349² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20583273299 and 20583273308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20583273649) 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, 1109089 + ... + 1127494.

It is an arithmetic number, because the mean of its divisors is an integer number (5146379784).

Almost surely, 2^20583273349 is an apocalyptic number.

It is an amenable number.

20583273349 is a deficient number, since it is larger than the sum of its proper divisors (2245787).

20583273349 is an equidigital number, since it uses as much as digits as its factorization.

20583273349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245786.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 20583273349 in words is "twenty billion, five hundred eighty-three million, two hundred seventy-three thousand, three hundred forty-nine".