20593780992 has 54 divisors (see below), whose sum is σ = 59376954182. Its totient is φ = 6864592896.

The previous prime is 20593780967. The next prime is 20593780993. The reversal of 20593780992 is 29908739502.

It can be written as a sum of positive squares in only one way, i.e., 11080509696 + 9513271296 = 105264^2 + 97536^2 .

It is not an unprimeable number, because it can be changed into a prime (20593780993) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4466833 + ... + 4471440.

Almost surely, 2^20593780992 is an apocalyptic number.

It is an amenable number.

20593780992 is an abundant number, since it is smaller than the sum of its proper divisors (38783173190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20593780992 is an equidigital number, since it uses as much as digits as its factorization.

20593780992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8938295 (or 8938278 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The spelling of 20593780992 in words is "twenty billion, five hundred ninety-three million, seven hundred eighty thousand, nine hundred ninety-two".