20727723607 has 2 divisors, whose sum is σ = 20727723608. Its totient is φ = 20727723606.

The previous prime is 20727723557. The next prime is 20727723613. The reversal of 20727723607 is 70632772702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20727723607 - 2¹¹ = 20727721559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20727723007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10363861803 + 10363861804.

It is an arithmetic number, because the mean of its divisors is an integer number (10363861804).

Almost surely, 2^20727723607 is an apocalyptic number.

20727723607 is a deficient number, since it is larger than the sum of its proper divisors (1).

20727723607 is an equidigital number, since it uses as much as digits as its factorization.

20727723607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345744, while the sum is 43.

The spelling of 20727723607 in words is "twenty billion, seven hundred twenty-seven million, seven hundred twenty-three thousand, six hundred seven".