20854348727 has 2 divisors, whose sum is σ = 20854348728. Its totient is φ = 20854348726.

The previous prime is 20854348703. The next prime is 20854348729. The reversal of 20854348727 is 72784345802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20854348727 - 2²⁰ = 20853300151 is a prime.

Together with 20854348729, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20854348729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10427174363 + 10427174364.

It is an arithmetic number, because the mean of its divisors is an integer number (10427174364).

Almost surely, 2^20854348727 is an apocalyptic number.

20854348727 is a deficient number, since it is larger than the sum of its proper divisors (1).

20854348727 is an equidigital number, since it uses as much as digits as its factorization.

20854348727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3010560, while the sum is 50.

The spelling of 20854348727 in words is "twenty billion, eight hundred fifty-four million, three hundred forty-eight thousand, seven hundred twenty-seven".