257823232468 has 12 divisors (see below), whose sum is σ = 466748955540. Its totient is φ = 124466388032.

The previous prime is 257823232417. The next prime is 257823232487. The reversal of 257823232468 is 864232328752.

257823232468 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 125081054224 + 132742178244 = 353668^2 + 364338^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1111306921 + ... + 1111307152.

It is an arithmetic number, because the mean of its divisors is an integer number (38895746295).

Almost surely, 2^257823232468 is an apocalyptic number.

It is an amenable number.

257823232468 is a deficient number, since it is larger than the sum of its proper divisors (208925723072).

257823232468 is a wasteful number, since it uses less digits than its factorization.

257823232468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222614106 (or 2222614104 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 52.

The spelling of 257823232468 in words is "two hundred fifty-seven billion, eight hundred twenty-three million, two hundred thirty-two thousand, four hundred sixty-eight".