257238229233 has 16 divisors (see below), whose sum is σ = 348817674240. Its totient is φ = 168575803344.

The previous prime is 257238229217. The next prime is 257238229247. The reversal of 257238229233 is 332922832752.

It is not a de Polignac number, because 257238229233 - 2⁴ = 257238229217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (257238229033) 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, 4328760 + ... + 4387782.

It is an arithmetic number, because the mean of its divisors is an integer number (21801104640).

Almost surely, 2^257238229233 is an apocalyptic number.

It is an amenable number.

257238229233 is a deficient number, since it is larger than the sum of its proper divisors (91579445007).

257238229233 is a wasteful number, since it uses less digits than its factorization.

257238229233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83708.

The product of its digits is 2177280, while the sum is 48.

The spelling of 257238229233 in words is "two hundred fifty-seven billion, two hundred thirty-eight million, two hundred twenty-nine thousand, two hundred thirty-three".