257056746577043 has 8 divisors (see below), whose sum is σ = 296687843292000. Its totient is φ = 218152825948800.

The previous prime is 257056746577009. The next prime is 257056746577069. The reversal of 257056746577043 is 340775647650752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 257056746577043 - 2²⁴ = 257056729799827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257056746547043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181794020918 + ... + 181794022331.

It is an arithmetic number, because the mean of its divisors is an integer number (37085980411500).

Almost surely, 2^{257056746577043} is an apocalyptic number.

257056746577043 is a deficient number, since it is larger than the sum of its proper divisors (39631096714957).

257056746577043 is a wasteful number, since it uses less digits than its factorization.

257056746577043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363588043357.

The product of its (nonzero) digits is 1037232000, while the sum is 68.

The spelling of 257056746577043 in words is "two hundred fifty-seven trillion, fifty-six billion, seven hundred forty-six million, five hundred seventy-seven thousand, forty-three".