257845813006 has 8 divisors (see below), whose sum is σ = 403584750864. Its totient is φ = 123317562720.

The previous prime is 257845812989. The next prime is 257845813007. The reversal of 257845813006 is 600318548752.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257845813007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2802671835 + ... + 2802671926.

It is an arithmetic number, because the mean of its divisors is an integer number (50448093858).

Almost surely, 2^257845813006 is an apocalyptic number.

257845813006 is a deficient number, since it is larger than the sum of its proper divisors (145738937858).

257845813006 is a wasteful number, since it uses less digits than its factorization.

257845813006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605343786.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 257845813006 in words is "two hundred fifty-seven billion, eight hundred forty-five million, eight hundred thirteen thousand, six".