20636773027 has 24 divisors (see below), whose sum is σ = 23283968400. Its totient is φ = 18259532928.

The previous prime is 20636772983. The next prime is 20636773039. The reversal of 20636773027 is 72037763602.

It is not a de Polignac number, because 20636773027 - 2⁷ = 20636772899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20636773057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 666093 + ... + 696385.

It is an arithmetic number, because the mean of its divisors is an integer number (970165350).

Almost surely, 2^20636773027 is an apocalyptic number.

20636773027 is a deficient number, since it is larger than the sum of its proper divisors (2647195373).

20636773027 is a wasteful number, since it uses less digits than its factorization.

20636773027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30487 (or 30474 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 43.

The spelling of 20636773027 in words is "twenty billion, six hundred thirty-six million, seven hundred seventy-three thousand, twenty-seven".