20827602811 has 2 divisors, whose sum is σ = 20827602812. Its totient is φ = 20827602810.

The previous prime is 20827602787. The next prime is 20827602839. The reversal of 20827602811 is 11820672802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20827602811 - 2¹⁹ = 20827078523 is a prime.

It is not a weakly prime, because it can be changed into another prime (20827602841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10413801405 + 10413801406.

It is an arithmetic number, because the mean of its divisors is an integer number (10413801406).

Almost surely, 2^20827602811 is an apocalyptic number.

20827602811 is a deficient number, since it is larger than the sum of its proper divisors (1).

20827602811 is an equidigital number, since it uses as much as digits as its factorization.

20827602811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 20827602811 in words is "twenty billion, eight hundred twenty-seven million, six hundred two thousand, eight hundred eleven".