257078212743 has 8 divisors (see below), whose sum is σ = 373931945856. Its totient is φ = 155804977400.

The previous prime is 257078212709. The next prime is 257078212757. The reversal of 257078212743 is 347212870752.

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 257078212743 - 2²⁰ = 257077164167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 257078212692 and 257078212701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257078212793) 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, 3895124403 + ... + 3895124468.

It is an arithmetic number, because the mean of its divisors is an integer number (46741493232).

Almost surely, 2^257078212743 is an apocalyptic number.

257078212743 is a deficient number, since it is larger than the sum of its proper divisors (116853733113).

257078212743 is a wasteful number, since it uses less digits than its factorization.

257078212743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7790248885.

The product of its (nonzero) digits is 1317120, while the sum is 48.

The spelling of 257078212743 in words is "two hundred fifty-seven billion, seventy-eight million, two hundred twelve thousand, seven hundred forty-three".