257385322473 has 8 divisors (see below), whose sum is σ = 343415652000. Its totient is φ = 171472603968.

The previous prime is 257385322457. The next prime is 257385322483. The reversal of 257385322473 is 374223583752.

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

It is not a de Polignac number, because 257385322473 - 2⁴ = 257385322457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (257385322483) 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, 29397648 + ... + 29406401.

It is an arithmetic number, because the mean of its divisors is an integer number (42926956500).

Almost surely, 2^257385322473 is an apocalyptic number.

It is an amenable number.

257385322473 is a deficient number, since it is larger than the sum of its proper divisors (86030329527).

257385322473 is a wasteful number, since it uses less digits than its factorization.

257385322473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58805511.

The product of its digits is 8467200, while the sum is 51.

The spelling of 257385322473 in words is "two hundred fifty-seven billion, three hundred eighty-five million, three hundred twenty-two thousand, four hundred seventy-three".