257474785623 has 8 divisors (see below), whose sum is σ = 374508779136. Its totient is φ = 156045324600.

The previous prime is 257474785609. The next prime is 257474785627. The reversal of 257474785623 is 326587474752.

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

It is not a de Polignac number, because 257474785623 - 2⁹ = 257474785111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257474785627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3901133083 + ... + 3901133148.

It is an arithmetic number, because the mean of its divisors is an integer number (46813597392).

Almost surely, 2^257474785623 is an apocalyptic number.

257474785623 is a deficient number, since it is larger than the sum of its proper divisors (117033993513).

257474785623 is a wasteful number, since it uses less digits than its factorization.

257474785623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7802266245.

The product of its digits is 79027200, while the sum is 60.

The spelling of 257474785623 in words is "two hundred fifty-seven billion, four hundred seventy-four million, seven hundred eighty-five thousand, six hundred twenty-three".