254213641757 has 2 divisors, whose sum is σ = 254213641758. Its totient is φ = 254213641756.

The previous prime is 254213641729. The next prime is 254213641769. The reversal of 254213641757 is 757146312452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184722882436 + 69490759321 = 429794^2 + 263611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254213641757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254213641057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127106820878 + 127106820879.

It is an arithmetic number, because the mean of its divisors is an integer number (127106820879).

Almost surely, 2^254213641757 is an apocalyptic number.

It is an amenable number.

254213641757 is a deficient number, since it is larger than the sum of its proper divisors (1).

254213641757 is an equidigital number, since it uses as much as digits as its factorization.

254213641757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1411200, while the sum is 47.

The spelling of 254213641757 in words is "two hundred fifty-four billion, two hundred thirteen million, six hundred forty-one thousand, seven hundred fifty-seven".