20932791727 has 2 divisors, whose sum is σ = 20932791728. Its totient is φ = 20932791726.

The previous prime is 20932791689. The next prime is 20932791731. The reversal of 20932791727 is 72719723902.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20932791727 - 2¹⁹ = 20932267439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20932791787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10466395863 + 10466395864.

It is an arithmetic number, because the mean of its divisors is an integer number (10466395864).

Almost surely, 2^20932791727 is an apocalyptic number.

20932791727 is a deficient number, since it is larger than the sum of its proper divisors (1).

20932791727 is an equidigital number, since it uses as much as digits as its factorization.

20932791727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 666792, while the sum is 49.

The spelling of 20932791727 in words is "twenty billion, nine hundred thirty-two million, seven hundred ninety-one thousand, seven hundred twenty-seven".