257040747724743 has 40 divisors (see below), whose sum is σ = 387971129433888. Its totient is φ = 169577204299776.

The previous prime is 257040747724723. The next prime is 257040747724751. The reversal of 257040747724743 is 347427747040752.

257040747724743 is a `hidden beast` number, since 2 + 5 + 70 + 4 + 0 + 7 + 477 + 24 + 74 + 3 = 666.

It is not a de Polignac number, because 257040747724743 - 2⁶ = 257040747724679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257040747724723) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 78481630 + ... + 81691172.

Almost surely, 2^{257040747724743} is an apocalyptic number.

257040747724743 is a deficient number, since it is larger than the sum of its proper divisors (130930381709145).

257040747724743 is a wasteful number, since it uses less digits than its factorization.

257040747724743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3219845 (or 3219836 counting only the distinct ones).

The product of its (nonzero) digits is 258155520, while the sum is 63.

The spelling of 257040747724743 in words is "two hundred fifty-seven trillion, forty billion, seven hundred forty-seven million, seven hundred twenty-four thousand, seven hundred forty-three".