20709714793 has 4 divisors (see below), whose sum is σ = 20769055300. Its totient is φ = 20650374288.

The previous prime is 20709714787. The next prime is 20709714803. The reversal of 20709714793 is 39741790702.

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 8513383824 + 12196330969 = 92268^2 + 110437^2 .

It is a cyclic number.

It is not a de Polignac number, because 20709714793 - 2⁹ = 20709714281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20709714743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29669730 + ... + 29670427.

It is an arithmetic number, because the mean of its divisors is an integer number (5192263825).

Almost surely, 2^20709714793 is an apocalyptic number.

It is an amenable number.

20709714793 is a deficient number, since it is larger than the sum of its proper divisors (59340507).

20709714793 is an equidigital number, since it uses as much as digits as its factorization.

20709714793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59340506.

The product of its (nonzero) digits is 666792, while the sum is 49.

The spelling of 20709714793 in words is "twenty billion, seven hundred nine million, seven hundred fourteen thousand, seven hundred ninety-three".