257769061141 has 4 divisors (see below), whose sum is σ = 257791185612. Its totient is φ = 257746936672.

The previous prime is 257769061139. The next prime is 257769061157. The reversal of 257769061141 is 141160967752.

257769061141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148706640625 + 109062420516 = 385625^2 + 330246^2 .

It is a cyclic number.

It is not a de Polignac number, because 257769061141 - 2¹ = 257769061139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257769061181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11044750 + ... + 11068063.

It is an arithmetic number, because the mean of its divisors is an integer number (64447796403).

Almost surely, 2^257769061141 is an apocalyptic number.

It is an amenable number.

257769061141 is a deficient number, since it is larger than the sum of its proper divisors (22124471).

257769061141 is a wasteful number, since it uses less digits than its factorization.

257769061141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22124470.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 257769061141 in words is "two hundred fifty-seven billion, seven hundred sixty-nine million, sixty-one thousand, one hundred forty-one".