20612727827 has 2 divisors, whose sum is σ = 20612727828. Its totient is φ = 20612727826.

The previous prime is 20612727721. The next prime is 20612727869. The reversal of 20612727827 is 72872721602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20612727827 - 2⁸ = 20612727571 is a prime.

It is not a weakly prime, because it can be changed into another prime (20612727887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10306363913 + 10306363914.

It is an arithmetic number, because the mean of its divisors is an integer number (10306363914).

Almost surely, 2^20612727827 is an apocalyptic number.

20612727827 is a deficient number, since it is larger than the sum of its proper divisors (1).

20612727827 is an equidigital number, since it uses as much as digits as its factorization.

20612727827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 263424, while the sum is 44.

The spelling of 20612727827 in words is "twenty billion, six hundred twelve million, seven hundred twenty-seven thousand, eight hundred twenty-seven".