257538278766214 has 4 divisors (see below), whose sum is σ = 386307418149324. Its totient is φ = 128769139383106.

The previous prime is 257538278766191. The next prime is 257538278766257. The reversal of 257538278766214 is 412667872835752.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64384569691552 + ... + 64384569691555.

It is an arithmetic number, because the mean of its divisors is an integer number (96576854537331).

Almost surely, 2^{257538278766214} is an apocalyptic number.

257538278766214 is a deficient number, since it is larger than the sum of its proper divisors (128769139383110).

257538278766214 is a wasteful number, since it uses less digits than its factorization.

257538278766214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128769139383109.

The product of its digits is 1896652800, while the sum is 73.

The spelling of 257538278766214 in words is "two hundred fifty-seven trillion, five hundred thirty-eight billion, two hundred seventy-eight million, seven hundred sixty-six thousand, two hundred fourteen".