256743504214262 has 24 divisors (see below), whose sum is σ = 433555665929904. Its totient is φ = 113344958376144.

The previous prime is 256743504214217. The next prime is 256743504214283. The reversal of 256743504214262 is 262412405347652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9333398498 + ... + 9333426005.

It is an arithmetic number, because the mean of its divisors is an integer number (18064819413746).

Almost surely, 2^{256743504214262} is an apocalyptic number.

256743504214262 is a deficient number, since it is larger than the sum of its proper divisors (176812161715642).

256743504214262 is a wasteful number, since it uses less digits than its factorization.

256743504214262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18666824564 (or 18666824541 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 53.

The spelling of 256743504214262 in words is "two hundred fifty-six trillion, seven hundred forty-three billion, five hundred four million, two hundred fourteen thousand, two hundred sixty-two".