20257770712741 has 2 divisors, whose sum is σ = 20257770712742. Its totient is φ = 20257770712740.

The previous prime is 20257770712681. The next prime is 20257770712759. The reversal of 20257770712741 is 14721707775202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19497611672100 + 760159040641 = 4415610^2 + 871871^2 .

It is a cyclic number.

It is not a de Polignac number, because 20257770712741 - 2²³ = 20257762324133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20257770712841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10128885356370 + 10128885356371.

It is an arithmetic number, because the mean of its divisors is an integer number (10128885356371).

Almost surely, 2^{20257770712741} is an apocalyptic number.

It is an amenable number.

20257770712741 is a deficient number, since it is larger than the sum of its proper divisors (1).

20257770712741 is an equidigital number, since it uses as much as digits as its factorization.

20257770712741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2689120, while the sum is 52.

The spelling of 20257770712741 in words is "twenty trillion, two hundred fifty-seven billion, seven hundred seventy million, seven hundred twelve thousand, seven hundred forty-one".