20773335827 has 4 divisors (see below), whose sum is σ = 21995296776. Its totient is φ = 19551374880.

The previous prime is 20773335809. The next prime is 20773335857. The reversal of 20773335827 is 72853337702.

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 20773335827 - 2¹⁸ = 20773073683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20773335857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610980449 + ... + 610980482.

It is an arithmetic number, because the mean of its divisors is an integer number (5498824194).

Almost surely, 2^20773335827 is an apocalyptic number.

20773335827 is a deficient number, since it is larger than the sum of its proper divisors (1221960949).

20773335827 is a wasteful number, since it uses less digits than its factorization.

20773335827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221960948.

The product of its (nonzero) digits is 1481760, while the sum is 47.

The spelling of 20773335827 in words is "twenty billion, seven hundred seventy-three million, three hundred thirty-five thousand, eight hundred twenty-seven".