257932361143 has 16 divisors (see below), whose sum is σ = 264883840000. Its totient is φ = 251072045280.

The previous prime is 257932361131. The next prime is 257932361153. The reversal of 257932361143 is 341163239752.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-257932361143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 257932361093 and 257932361102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257932361123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9907858 + ... + 9933856.

It is an arithmetic number, because the mean of its divisors is an integer number (16555240000).

Almost surely, 2^257932361143 is an apocalyptic number.

257932361143 is a deficient number, since it is larger than the sum of its proper divisors (6951478857).

257932361143 is a wasteful number, since it uses less digits than its factorization.

257932361143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27742.

The product of its digits is 816480, while the sum is 46.

The spelling of 257932361143 in words is "two hundred fifty-seven billion, nine hundred thirty-two million, three hundred sixty-one thousand, one hundred forty-three".