257320374059 has 8 divisors (see below), whose sum is σ = 294083528928. Its totient is φ = 220557994560.

The previous prime is 257320374043. The next prime is 257320374067. The reversal of 257320374059 is 950473023752.

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 257320374059 - 2⁴ = 257320374043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (257320374019) 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, 1046039 + ... + 1268399.

It is an arithmetic number, because the mean of its divisors is an integer number (36760441116).

Almost surely, 2^257320374059 is an apocalyptic number.

257320374059 is a deficient number, since it is larger than the sum of its proper divisors (36763154869).

257320374059 is a wasteful number, since it uses less digits than its factorization.

257320374059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387685.

The product of its (nonzero) digits is 1587600, while the sum is 47.

The spelling of 257320374059 in words is "two hundred fifty-seven billion, three hundred twenty million, three hundred seventy-four thousand, fifty-nine".