20773084135 has 4 divisors (see below), whose sum is σ = 24927700968. Its totient is φ = 16618467304.

The previous prime is 20773084069. The next prime is 20773084147. The reversal of 20773084135 is 53148037702.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20773084135 - 2⁹ = 20773083623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 2077308409 + ... + 2077308418.

It is an arithmetic number, because the mean of its divisors is an integer number (6231925242).

Almost surely, 2^20773084135 is an apocalyptic number.

20773084135 is a deficient number, since it is larger than the sum of its proper divisors (4154616833).

20773084135 is an equidigital number, since it uses as much as digits as its factorization.

20773084135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4154616832.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 20773084135 in words is "twenty billion, seven hundred seventy-three million, eighty-four thousand, one hundred thirty-five".