257245533467 has 8 divisors (see below), whose sum is σ = 277196924256. Its totient is φ = 237317467392.

The previous prime is 257245533463. The next prime is 257245533487. The reversal of 257245533467 is 764335542752.

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 257245533467 - 2² = 257245533463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257245533463) 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, 5808263 + ... + 5852384.

It is an arithmetic number, because the mean of its divisors is an integer number (34649615532).

Almost surely, 2^257245533467 is an apocalyptic number.

257245533467 is a deficient number, since it is larger than the sum of its proper divisors (19951390789).

257245533467 is a wasteful number, since it uses less digits than its factorization.

257245533467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11662357.

The product of its digits is 21168000, while the sum is 53.

The spelling of 257245533467 in words is "two hundred fifty-seven billion, two hundred forty-five million, five hundred thirty-three thousand, four hundred sixty-seven".