20727562337 has 2 divisors, whose sum is σ = 20727562338. Its totient is φ = 20727562336.

The previous prime is 20727562241. The next prime is 20727562357. The reversal of 20727562337 is 73326572702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11390012176 + 9337550161 = 106724^2 + 96631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20727562337 is a prime.

It is not a weakly prime, because it can be changed into another prime (20727562357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10363781168 + 10363781169.

It is an arithmetic number, because the mean of its divisors is an integer number (10363781169).

Almost surely, 2^20727562337 is an apocalyptic number.

It is an amenable number.

20727562337 is a deficient number, since it is larger than the sum of its proper divisors (1).

20727562337 is an equidigital number, since it uses as much as digits as its factorization.

20727562337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740880, while the sum is 44.

The spelling of 20727562337 in words is "twenty billion, seven hundred twenty-seven million, five hundred sixty-two thousand, three hundred thirty-seven".